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646 lines
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<title>Quantum puzzles</title>
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<meta name="author" content="Amr Gharbeia">
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<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt"><font color="#993366"><font face="Verdana, sans-serif"><b>Q<img src="data:image/png;base64,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" name="TtsOtkCLQm_03" align="right" width="200" height="38" border="0"><img src="data:image/png;base64,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" name="HistCmt" align="right" hspace="5" width="149" height="22" border="0">uantum
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puzzles.</b></font></font> Of the various quantum puzzles, the most
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basic is probably wave-particle duality. The atom itself is, however,
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the most important, puzzling consequence for the ordinary world. The
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traditional way of summing up what is most puzzling about quantum
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mechanics is the Heisenberg uncertainty principle, but recently the
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most discussed is called “Bell’s inequality.” All of them are
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described here as a way of introducing quantum mechanics as it is
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currently understood, and after explaining the spatiomaterialist
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theory of quantum matter, I will show how they can be solved. </font></font></font>
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</p>
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<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt"><font face="Verdana, sans-serif">W<img src="data:image/png;base64,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" name="TtsOtkCLQm_04" align="right" hspace="5" width="225" height="30" border="0">ave-particle
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duality. </font>According to Bohr, the basic puzzle of quantum
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mechanics is the dual nature of the basic entities it describes. They
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all appear to be like both particles and like waves. What classical
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physics took to be waves turn out to have a particle-like nature as
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well, and what classical physics took to be particles turn out to
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have a wave-like nature as well. Bohr thought that both appearances
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of the underlying reality are due in part to our measuring apparatus
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and the classical expectations on which they are constructed. But
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wave-like and particle-like natures are apparently incompatible, and
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since both of these classical conceptions of reality are needed to
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make all of the possible predictions, he called the basic puzzle of
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quantum mechanics “complementarity.” Bohr was the originator of
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the so-called "Copenhagen interpretation" of quantum
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mechanics, which holds that the reality behind these complementary
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phenomena is incomprehensible to us.</font></font></font></p>
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<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt"><i><b>The
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particle-like nature of electromagnetic waves. </b></i>Light has long
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since been thought to have wave-like nature in classical physics.
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Early in the nineteenth century, Thomas Young showed that light
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passing through two narrow, closely spaced holes (or slits) produces
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a pattern of light and dark lines on the screen that finally
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intercepts them, and he explained it by the wavelike nature of light.
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The places on the screen where the waves emerging from each slit
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interfere constructively are bright, while the places where they
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interfere destructively are dark. When one slit is blocked, the
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interference pattern disappears.</font></font></font></p>
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" name="Interference" align="bottom" width="372" height="290" border="0"></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Diffraction
|
||
phenomena also indicate the wave like nature of light. Light rays
|
||
passing through a hole that approximates its wavelength will be
|
||
spread out as it leaves the hole, with the range of the spread
|
||
varying inversely with the size of the hole. When the hole is large,
|
||
the light hitting the distant screen is like a point, but when the
|
||
hole is small, the diffraction is great. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Moreover,
|
||
as we have seen, light had been explained by Maxwell as the wavelike
|
||
coupling of the electric and magnetic forces described by his
|
||
equations. Indeed, it enabled him to predict the velocity of light.</font></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt">The
|
||
particle-like nature of light was the first of the discoveries that
|
||
eventually culminated in quantum mechanics. Instead of propagating
|
||
like a wave in an elastic medium, as the classical model assumed, it
|
||
became clear that light is actually made up of distinct particles,
|
||
which are now called “photons”. This particle-like nature means
|
||
that the energy and momentum carried by light do not combine
|
||
continuously, as they do in ordinary waves, but come in separate
|
||
units, called “quanta”. The size of the quantum of light is now
|
||
represented by Planck’s constant, <i>h</i>, which is part of every
|
||
new equation used in quantum mechanics. It appears in the new
|
||
equations for the energy and momentum of light. The energy, <i>E</i>,
|
||
is given by <i>E = hf </i>(where <i>E </i>is energy, <i>f
|
||
</i>is frequency), and the momentum, <i>p</i>, is given by <i>p = h/</i>
|
||
(where <i>p </i>is momentum, and is the wavelength). </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Max Planck
|
||
first discovered the particle-like nature of light in 1900, though he
|
||
did not fully understand what he was on to. He discovered the
|
||
constant named after him by tinkering with a classical equation for
|
||
calculating the amount of energy given off at each frequency in
|
||
so-called blackbody radiation, that is, a hot body in which no
|
||
frequency of light should be favored. (It is best approximated by a
|
||
box with mirrored interior walls in which light of all possible
|
||
wavelengths for a box with certain temperature are being reflected
|
||
back and forth.) The classical equation assumed that the frequencies
|
||
of light being given off varied continuously from the lowest to the
|
||
highest, with the peak intensity depending on the temperature. That
|
||
assumption worked well enough for the low frequencies, but at high
|
||
frequencies, it led to the conclusion that the total energy given off
|
||
should be infinite. This absurdity was called the “ultraviolet
|
||
catastrophe.” Planck discovered a formula that avoided the
|
||
catastrophe and predicted the total quantity of energy given off at
|
||
each frequency by introducing a constant, <i>h</i>, into the formula
|
||
which restricted the frequencies of light. That is the source of the
|
||
equation for the energy of light: <i>E = hf.</i> (Though
|
||
its meaning is still obscure, it can, perhaps, be seen as requiring
|
||
the photons to differ from one another by that constant amount.) </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Albert
|
||
Einstein made it clearer that what Planck had discovered was the
|
||
particle-like nature of light by using Planck’s constant is his own
|
||
explanation of the photoelectric effect (in 1905, the same year that
|
||
he published his special theory of relativity). It had been known
|
||
that light being intercepted by material objects could release
|
||
electrons from the material objects, but it was found that the
|
||
release of electrons did not depend on the total energy of the light
|
||
waves (the intensity of the light), as one would expect on the wave
|
||
hypothesis. It depends on the frequency of the light. Below a certain
|
||
frequency, no electrons are released, regardless how intense the
|
||
light may be at that frequency. Whereas light with a higher frequency
|
||
would release electrons even though the intensity was much less.
|
||
Einstein showed that the release of the electrons depended on the
|
||
absorption of single photons, each of whose energy depended on
|
||
Planck’s constant: <i>E = hf.</i></font></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Much later
|
||
(in 1923), Arthur Compton showed that photons also have a momentum
|
||
like particles. He shot high energy photons (x rays) at electrons and
|
||
used arguments based on the conservation of momentum and energy to
|
||
predict correctly the amount by which their energies would be changed
|
||
by such scattering. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt">The
|
||
particle-like nature of the light does not change its wave-like
|
||
properties. Indeed, it turns out that interference effects still
|
||
occur when light is sent through the two-slit apparatus one photon at
|
||
a time. Over time, they still accumulate in fringes on the distant
|
||
wall. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt"><i><b>The
|
||
wave-like nature of particles with rest mass. </b></i>Material
|
||
objects are understood in classical physics as having definite
|
||
locations in space at each moment and to follow definite trajectories
|
||
as they move from one place to another. But the behavior of objects
|
||
with rest mass on the smallest scale is peculiar in the opposite way
|
||
from photons, according to quantum theory. Just as light waves have a
|
||
particle-like nature, so material objects have a wave-like nature. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">The
|
||
wave-like nature of particles with rest mass was predicted in 1923 by
|
||
de Broglie. What Einstein’s special theory of relativity implies
|
||
about the relativistic increase in mass leads to the conclusion that
|
||
the energy of a photon is equal to the product of its momentum and
|
||
the velocity of light, or <i>E = pc.</i> Since the velocity
|
||
of light is equal to the product of the frequency and wavelength, or
|
||
<i>c = f</i>it follows that the momentum of a
|
||
photon is <i>p = h/</i>De Broglie went on to
|
||
suggest that the same relationship holds of particles with kinetic
|
||
energy. He argued that particles, such as electrons, protons and
|
||
material objects with mass generally would also have a wave length
|
||
that varied inversely with their momentum in the same way. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Interference
|
||
and diffraction phenomena were the kind of empirical evidence that
|
||
was taken as showing that light has a wave-like nature, and soon
|
||
after de Broglie’s prediction, it was shown that the electrons
|
||
forced to pass through very small holes do exhibit diffraction, that
|
||
is, the smaller the hole, the more they spread out. Eventually, even
|
||
interference phenomena were demonstrated with electrons. When
|
||
electrons moving at a certain velocity are projected through narrow,
|
||
closely spaced, parallel slits at a screen (where the distance
|
||
between the slits approximates their de Broglie wave length), they
|
||
also form an interference pattern on the far wall, as if they were
|
||
waves. Even when the electrons were sent one at a time, they tended
|
||
to land on the distant screen only along certain fringes, leaving
|
||
lines between them without any hits. Thus, each particle is like a
|
||
wave. The same has been show to hold for neutrons, though in the case
|
||
of ordinary sized objects, the wavelengths are so small that
|
||
interference effects are undetectable. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 1.27cm; margin-right: 2.54cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt"><font face="Verdana, sans-serif">T<img src="data:image/png;base64,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" name="TtsOtkCLQm_05" align="right" hspace="5" width="225" height="30" border="0">he
|
||
structure of the hydrogen atom.</font> The laws of quantum mechanics
|
||
were discovered mainly by attempting to explain the structure of the
|
||
hydrogen atom. It had been established by Ernest Rutherford that the
|
||
atom is composed of a massive, positively charged nucleus surrounded
|
||
by far less massive electrons, and Niels Bohr hoped to explain the
|
||
chemical properties of atoms by the nature of the interactions
|
||
between the electrons and the nucleus. It was clear that atoms could
|
||
not be explained in classical terms on the model of the solar system,
|
||
since according to Maxwell’s equations, the orbital motion of an
|
||
electron would generate (as the acceleration of a negatively charged
|
||
particle) an electromagnetic wave which would drain its energy until
|
||
the electron was located at rest with the nucleus. In fact, atoms
|
||
with electrons located around it are quite stable, and when such
|
||
atoms are excited (by supplying energy to them), they give off
|
||
electromagnetic radiation at a certain set of distinctive
|
||
frequencies.</font></font></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt">Bohr
|
||
explained the frequencies of the spectrum of hydrogen atoms (in 1913)
|
||
by assuming that electrons can have only certain orbits, each
|
||
characterized by an energy level that corresponds to the total energy
|
||
of an electron with kinetic energy in a force field with potential
|
||
energy imposed by the nucleus. (The total quantity of energy is
|
||
negative, because the kinetic energy of the particle is not great
|
||
enough to replace all the negative potential energy that would be
|
||
required to free it, and according to our assumption about the nature
|
||
of potential energy, the negative sign for potential energy indicates
|
||
that the nucleus and electron have less rest mass.) The energies of
|
||
the possible orbits were determined as a function of Planck’s
|
||
constant, and a number was assigned to each possible orbit, starting
|
||
with the lowest energy orbit and counting upwards (<i>n = 1, 2, 3, .
|
||
. </i>). Bohr showed that the spectral lines of the hydrogen atom
|
||
could be explained by the differences in the energies of these
|
||
permitted electron orbits. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">The basic
|
||
puzzle of quantum mechanics is the structure of the atom itself, that
|
||
is, what is going on that only certain energy levels are possible for
|
||
electrons bound to a nucleus by electromagnetic forces. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Given the
|
||
structure of the atom, however, there is another problem, for it does
|
||
not seem possible that electrons could be jumping from one orbital to
|
||
another. When a photon is absorbed or emitted by an atom, an electron
|
||
changes from one permitted orbital to another (so that the atom
|
||
changes from one energy state to another). But the photon has a
|
||
particle-like nature, and the particle seems to change its position
|
||
and motion in an instantaneous, step-like change, that is, without
|
||
accelerating nor even moving continuously from one state to the next.
|
||
It hard to see how the electron’s change of orbital can be
|
||
explained as the motion of a material object, since a material object
|
||
can change location only by moving across space continuously as time
|
||
passes time. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Another
|
||
puzzle has to do with the timing of the emission of photons. When an
|
||
atom or molecule is in an energy state that can decay into a lower
|
||
energy state, it is not possible, even in principle, to say exactly
|
||
when it will decay. The timing can be assigned a probability, but the
|
||
theory has nothing to explain why it happens at one moment rather
|
||
than another within that range. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Electron
|
||
jumps also seem to be involved in the phenomenon of tunneling.
|
||
“Tunneling” refers to situations in which electrons seem to jump
|
||
across barriers imposed by force fields. On classical principles,
|
||
crossing such a force field would require more energy than the
|
||
electron has. Nevertheless, some electrons do jump across. Only a few
|
||
electrons do so, and there is no way to predict which ones will jump.
|
||
But it is so regular that this phenomenon is used as a kind of
|
||
microscope for mapping the surfaces of material objects. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt">Erwin
|
||
Schrödinger thought that it would be possible to avoid these puzzles
|
||
about electron jumps and explain everything deterministically by
|
||
following up on de Broglie’s suggestion and explaining the behavior
|
||
of the electron in an atom as a wave. Using the model of the
|
||
classical equation for waves and taking the electron wave to be in a
|
||
potential field, Schrödinger presented an equation in 1925 that
|
||
explained the energy levels of the permitted orbitals of electrons in
|
||
the force field imposed by the nucleus of the hydrogen atom. The
|
||
time-independent Schrödinger equation (with the temporal changes
|
||
factored out so that it represents only the spatial structure of the
|
||
wave) portrays the electron bound to the nucleus of the hydrogen atom
|
||
as a standing wave, like a plucked string on a guitar. This made it
|
||
possible for Schrödinger to explain the numbers that Bohr had
|
||
assigned to the permitted orbitals of electrons as the energy states
|
||
in which the electron could be such a stable, standing wave. The
|
||
lowest energy level corresponds to the string with no nodes (that is,
|
||
half the wave length for its energy), the next one to a string with
|
||
one node, and so on. The problem of quantum jumps seemed to be
|
||
solved, because the transitions between such energy states of atoms
|
||
were explained as smooth and continuous transitions of waves. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Schrödinger
|
||
believed that his wavefunction showed that electrons were not
|
||
particles at all, but could be explained purely as waves in an
|
||
electromagnetic field. This did not explain why electrons appear to
|
||
be particles, for example, how they leave vapor trails in a Wilson
|
||
cloud chamber or interact at a certain point on the distant wall in
|
||
the two-slit interference experiment. But it is possible to explain
|
||
why electrons seem to have a determinate location by holding that
|
||
they are a "superposition" of waves with slightly different
|
||
wavelengths, because in regions where such wave interfere
|
||
constructively, they clump together in what are called “wave
|
||
packets.” Since the locations where such a set of waves interfere
|
||
constructively have more or less precise locations in space and seem
|
||
to move through the space occupied by the waves, the Schrödinger
|
||
wavefunction could explain the appearance that electrons move like
|
||
particles. (This was not a fully adequate explanation, however,
|
||
because such wave packets also tend to disperse over time, and yet
|
||
electrons actually turn up later at definite locations.)</font></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">However, it
|
||
was not possible to interpret the Schrödinger wavefunction as the
|
||
description of a classical wave. One problem was that it contained
|
||
complex numbers. There is no way to measure quantities multiplied by
|
||
the square root of minus one, and yet those complex numbers are
|
||
essential to the wavefunction, since they describe the phases of the
|
||
waves that are superimposed in the quantum system and, thereby,
|
||
determine the interference phenomena. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Furthermore,
|
||
the Schrödinger wavefunction described a wave in a space that can
|
||
have more than three dimensions (or what is called “configuration
|
||
space). When more than one particle is involved, the space occupied
|
||
by the wave described by Schrödinger’s wavefunction has three
|
||
times as many dimensions as there are particles. There is no obvious
|
||
way to relate such an equations to the actual three dimensional
|
||
world.</font></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt">What
|
||
is now the orthodox interpretation of the Schrödinger wavefunction
|
||
was first proposed by Max Born in 1926. He took the square of the
|
||
(time-independent) wavefunction in some region of configuration space
|
||
to be a measure of the probability of finding that the particle
|
||
located in that region of configuration space (thereby predicting a
|
||
measurable property, such as location, momentum or kinetic energy).
|
||
The predictions are confirmed by measurement. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Since the
|
||
predictions are merely probabilistic predictions, however, Born took
|
||
the Schrödinger wavefunction to be a representation, not of the
|
||
world itself, but of what we can know about it. This avoided the
|
||
problems of quantum jumps and wave packets that spread out, because
|
||
what really happens is not knowable. And insofar as it is taken
|
||
realistically, it implies that what happens is not fully determined
|
||
by the state that precedes it.</font></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 1.27cm; margin-right: 2.54cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt"><font face="Verdana, sans-serif">H<img src="data:image/png;base64,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" name="TtsOtkCLQm_06" align="right" hspace="5" width="225" height="34" border="0">eisenberg
|
||
uncertainty principle. </font>An entirely different mathematical
|
||
representation of these same quantum phenomena was developed by
|
||
Werner Heisenberg. His “matrix mechanics” is basically an
|
||
algorithm for making predictions of measurements without any attempt
|
||
to explain what is going on beneath the observable surface. Though
|
||
Schrödinger showed that Heisenberg’s matrix mechanics and his own
|
||
wavefunction are mathematically equivalent, matrix mechanics makes
|
||
the limitations on what can be known about the classical properties
|
||
of the entities described by quantum mechanics clear. In arguing
|
||
against Schrödinger, he defended what has come to be known as the
|
||
Heisenberg uncertainty principle.</font></font></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt">In
|
||
matrix mechanics, there are pairs of variables called “complementary”
|
||
or “conjugate” variables, because the measurement of one affects
|
||
the measurement of the other. That is, the results of measuring one
|
||
variable and then the other would be different if they were measured
|
||
in the opposite order. The position and momentum of an electron are
|
||
complementary variables, meaning that the position and momentum of an
|
||
electron cannot both be measured with arbitrarily high precision But
|
||
the more precise one measurement is, the less precise the other is.
|
||
Using Born’s probabilistic interpretation of the wavefunction to
|
||
express the “uncertainties” in such measurement, Heisenberg
|
||
derived a general principle about complementary variables: the
|
||
product of the uncertainty about the position and the uncertainty
|
||
about the momentum cannot be less than Planck’s constant divided by
|
||
four pi. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Heisenberg’s
|
||
uncertainty principle holds in a parallel way for other conjugate
|
||
variables, such as energy and time, angular momentum and orientation,
|
||
and cycle and phase. In each case, one variable is more particle-like
|
||
and the other is more wave-like, and thus, the variables are said to
|
||
be complementary. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Heisenberg
|
||
apparently took his uncertainty principle to be a basic postulate
|
||
from which all of quantum mechanics could be developed. He rejected
|
||
talk about the wave-particle duality and took a purely
|
||
instrumentalist approach which simply denied that there is any aspect
|
||
of the world that is not described by his matrix mechanics (or by
|
||
their equivalents in using the Schrödinger wavefunction). </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt">The
|
||
equivalence of Heisenberg’s matrix mechanics and Schrödinger’s
|
||
equation means that the Heisenberg uncertainty principle can be
|
||
derived in a similar way from Schrödinger’s equation. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">The
|
||
solution of Schrödinger’s equation for a given situation yields a
|
||
wavefunction, which is a complete description of the quantum system.
|
||
But in order to predict a measurable property, it is necessary to
|
||
apply an appropriate mathematical operator to the wavefunction. The
|
||
operator yields an “expectation value” for that property, which
|
||
may be a precise value or an average value. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">But some
|
||
pairs of operators are not commutable, such as the position and
|
||
momentum of a particle. Though it is often possible to make precise
|
||
predictions of these properties, the prediction of one makes it
|
||
impossible to predict the other. That is, when one property is
|
||
predicted by one operator, the mathematical operation changes the
|
||
wavefunction and so the prediction made for the other property is not
|
||
the same as it would have been if the second property had been
|
||
predicted first. Since the order in which the operators are applied
|
||
to the wavefunction makes a difference in what they predict, it is
|
||
impossible to predict both properties at once. Thus, the conjugate
|
||
variables to which Heisenberg’s uncertainty applies turn out to be
|
||
the pairs of properties predicted by non-commutable operators.</font></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">When the
|
||
operator yields an expectation value that is just the average result
|
||
for an entire series of experiments, it can often be represented as a
|
||
superposition of different wavefunctions for each of which the
|
||
operator gives an expectation value. When the measurement is made and
|
||
one of them turns out to be true, the wavefunction is said to
|
||
“collapse,” because the system turns out to have one or another
|
||
of precise predicted outcomes. This is called the “collapse of the
|
||
wavefunction,” because it is assumed that prior to the measurement,
|
||
what actually existed was a superposition of different wavefunctions.
|
||
</font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">This
|
||
interpretation of the measurement of a quantum system exacerbates the
|
||
problem, for the superposed states of the system can evolve in
|
||
radically different ways. In the most famous example, a cat is locked
|
||
in a box with a devise triggered by an unpredictable beta decay that
|
||
will, with 50% probability, release a poison that kills the cat
|
||
within a certain period of time. But until someone looks to see what
|
||
has happened, there is a superposition of the two states, one with a
|
||
dead cat and another with a living cat, and reality only resolves
|
||
itself into one or the other possibility at the moment someone looks.
|
||
This implausible implication of measurement being the collapse of the
|
||
wavefunction is called the problem of "Schrödinger’s cat."</font></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt">The
|
||
Heisenberg uncertainty principle is, perhaps, the most general
|
||
statement of the puzzles of quantum mechanics, and a genuine
|
||
ontological explanation of quantum mechanics, if there is one, should
|
||
reveal the source of this limitation on our knowledge. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 1.27cm; margin-right: 2.54cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt"><font face="Verdana, sans-serif">B<img src="data:image/png;base64,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" name="TtsOtkCLQm_07" align="right" hspace="5" width="225" height="32" border="0">ell
|
||
correlations. </font>Recently, attention has focused on a final
|
||
quantum mystery, called “Bell’s Theorem” or “Bell’s
|
||
Inequality.”<sup><a class="sdendnoteanc" name="sdendnote1anc" href="#sdendnote1sym"><sup>i</sup></a></sup>
|
||
John Bell showed that quantum mechanics entails, in certain
|
||
circumstances, a statistical correlation between events occurring at
|
||
a distance that seems to be possible only if the events have effects
|
||
on one another that travel faster than the velocity of light. It
|
||
holds for interactions in which particles move away from one another
|
||
in opposite directions with opposite orientations of a “spin”. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt"><i><b>Spin.</b></i>
|
||
Spin is a quantum property that was first recognized with the
|
||
discovery of quantum field theory. The Schrödinger wavefunction is
|
||
the law of non-relativistic quantum mechanics, and a more complete
|
||
law was discovered by Paul Dirac when he combined the Schrödinger
|
||
wavefunction with Einstein’s special theory of relativity, that is,
|
||
taking the relationship it describes between space and time into
|
||
account. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">There was
|
||
an asymmetry between the time-dependent and time–independent
|
||
wavefunctions derived by solving Schrödinger equation. The
|
||
time-independent wavefunction, describing the spatial aspects of the
|
||
standing wave, is a <i>second order </i>differential equation,
|
||
whereas the time-dependent wavefunction, describing how the quantum
|
||
system unfolds in time, is a <i>first order </i>differential
|
||
equation. Dirac derived a time-dependent wavefunction that was a
|
||
second order differential equation, making time and space
|
||
symmetrical, as they are in the special theory of relativity.</font></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt">It
|
||
is puzzling just what makes Dirac's derivation work, but it involved
|
||
several profound discoveries. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Dirac
|
||
discovered that there are twice as many solutions for the
|
||
wavefunctions than had been thought, half of them corresponding to
|
||
negative energy. This was the discovery of antimatter, such as, for
|
||
example, the positively charged electron as the negative partner of
|
||
the negatively charged electron, called the "positron."</font></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Dirac
|
||
discovered that quantum particles have another property, called
|
||
“spin,” which was a new quantum number that was needed for
|
||
wavefunctions to describe fully any quantum situation. That is, spin
|
||
is a new quantum number (namely, <i>s</i>) needed to describe the
|
||
atom (along with Bohr’s numbers for the energy states of atoms (<i>n</i>),
|
||
a number for the orbital angular momentum of the electron (<i>i</i>),
|
||
and a number for its magnetic moment (<i>m</i>)). </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">It is
|
||
believed that the intrinsic spin of an electron has little to do with
|
||
a spinning electrical charge. The spin of a particle is defined
|
||
operationally as the strength of the magnetic force that results when
|
||
a magnetic field is imposed on the particle. Particles, such as the
|
||
electron, that have ½ spin (called “fermions”) have one of only
|
||
two possible magnetic moments (positive and negative). Since there is
|
||
no way for them not to have a magnetic moment, it is hard to see how
|
||
they could be a classical material object with a charge that is
|
||
somehow actually spinning. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt"><i><b>Bell’s
|
||
Inequality.</b></i> John Bell discovered a curious consequence of
|
||
quantum mechanics involving spin. The spin of a particle (either a
|
||
rest mass or a photon, which has a spin of 1) would seem to a
|
||
property that the particle carries with it, but a prediction made on
|
||
this assumption contradicts quantum mechanics. And it seems to have
|
||
been disproved empirically. This suggest that spin is a property that
|
||
depends, not on the particle itself, but on what happens elsewhere in
|
||
a much more inclusive system involving both particles. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">The system
|
||
is one in which two objects are generated in a way that requires them
|
||
to have opposite orientations of spin, and they move away from one
|
||
another in opposite directions. Since space is three dimensional, the
|
||
spin of a particle can be measured from three different, mutually
|
||
perpendicular directions. If one particles is measured as having as
|
||
having spin, say, up, in some direction, then the other particle will
|
||
never turn out to have anything but the opposite, down, orientation
|
||
of spin when it is measured in the same direction. This holds
|
||
regardless which of the three independent directions in space the
|
||
magnetic field is oriented, and quantum mechanics does not permit one
|
||
to infer from its spin in one direction what its spin in any other
|
||
direction is. Thus, if spin is a property that the particles already
|
||
have when they part from one another, the outcome of measuring the
|
||
spin of the particles that moved off one way from their creation from
|
||
one direction should not enable us to predict the spin of the other
|
||
particle when measured from a different direction. Bell showed that,
|
||
on this assumption, a certain inequality must hold about the
|
||
frequency with which measurements of spin in one particle in one
|
||
direction would correlate with measurements of the spin of the other
|
||
particle in one of the other directions. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">However,
|
||
quantum theory predicts and experiments have confirmed that this
|
||
inequality will be violated. When two objects are generated in this
|
||
way, and the spin orientation of one of these objects is measured in
|
||
one direction, it is possible to predict the outcome of a measurement
|
||
of the spin orientation (up or down) of the other object in an
|
||
independent direction of three dimensional space more often than the
|
||
Bell inequality allows. It is not a reliable prediction in any
|
||
particular case, but statistically it is more frequent than would be
|
||
possible, if the spin orientations of both objects were already
|
||
determined when they parted and they were simply carried away with
|
||
them, as the principle of local action would require. </font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 3.81cm; margin-right: 2.03cm; margin-top: 0.49cm; margin-bottom: 0.49cm; background: #cccccc; border-top: 6.75pt double #000000; border-bottom: 6.75pt double #808080; border-left: 6.75pt double #000000; border-right: 6.75pt double #808080; padding: 0.28cm 0.46cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif">Though the
|
||
two measurements can be made as far apart in space as one likes, it
|
||
seems that the only way the measurements could be correlated is if
|
||
the measurement of one object were somehow affecting the state of the
|
||
other. And since the two measurements can be made to occur as near to
|
||
one another in time as one likes, there are instances of this
|
||
phenomenon in which such an effect could hold only if something
|
||
travels between them faster than the velocity of light. This puzzling
|
||
correlation is not only a consequence of quantum theory, but has also
|
||
been confirmed experimentally, and thus, it seems that we must give
|
||
up the principle of local action. But it seems to violate the
|
||
principle of local action. Since the different outcomes are a
|
||
superposition of different wavefunctions, this is seen as just
|
||
another puzzles about the so-called "collapse of the
|
||
wavefunction."</font></font></p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 1.27cm; margin-right: 2.54cm; margin-top: 0.49cm; margin-bottom: 0.49cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt">The
|
||
puzzles of quantum mechanics have to do with understanding what in
|
||
the world corresponds to the Schrödinger equation. The “Copenhagen
|
||
interpretation” of quantum mechanics, developed by Bohr, is the
|
||
received view. It simply denies that it is possible to describe the
|
||
nature of what exists except by applying the classical conceptions of
|
||
particles or wave, which if not strictly speaking incompatible, are,
|
||
at best, complementary. Defenders of the Copenhagen interpretation
|
||
see the puzzles of quantum mechanics as deriving from its departures
|
||
from classical physics, as if classical physics were based on
|
||
intuitions ( or a form of imagination) that is anthropocentric and,
|
||
thus, merely subjective. And some go on to insist that the
|
||
uncertainty is a real indeterminism about what happens in the world. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt">The
|
||
chief opponent of this view was Einstein. He was resisting the
|
||
reification of quantum uncertainty as indeterminism when he claimed,
|
||
“God does not play dice with the universe.” A view of the world
|
||
as being constituted by substances of some kind is what kept Einstein
|
||
from accepting quantum mechanics as the complete description of what
|
||
exists. His acceptance of spacetime as a substance made him most
|
||
sympathetic to Spinoza, for Spinoza believed that the world is a
|
||
single substance. But what seems to have kept Einstein from admitting
|
||
that such a substance could have indeterminism as a basic property
|
||
were his ontological instincts. </font></font></font>
|
||
</p>
|
||
<p lang="en-US" class="western" align="left" style="margin-left: 2.54cm; margin-right: 1.27cm; margin-top: 0.49cm; margin-bottom: 0.49cm; line-height: 100%; widows: 0; orphans: 0">
|
||
<font color="#000000"><font face="Times New Roman, serif"><font size="3" style="font-size: 12pt">In
|
||
what follows, I will elaborate the the assumptions of
|
||
spatiomaterialism in a way that explains ontologically why quantum
|
||
mechanics is true. It is, as I have warned, more speculative than the
|
||
rest of the argument of ontological philosophy. But it may suggest
|
||
the power of an ontological approach and vindicate Einstein’s view
|
||
of the nature of the world in at least one respect. </font></font></font>
|
||
</p>
|
||
<div id="sdendnote1">
|
||
<p lang="en-US" class="sdendnote-western" style="margin-top: 0cm; margin-bottom: 0.25cm">
|
||
<a class="sdendnotesym" name="sdendnote1sym" href="#sdendnote1anc">i</a><span lang="en-US">
|
||
See </span><a href="/F:/Philosophy/Existentialism/The%20Wholeness%20Of%20the%20World/www.twow.net/ObjText/#Cushing"><font color="#0000ff"><span lang="en-US"><u>Cushing</u></span></font></a><span lang="en-US">
|
||
and McMullin (1989) for discussions of this issue.</span></p>
|
||
</div>
|
||
</body>
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