Re: Physics of Al Gore
Re: Physics of Al Gore
Source: http://sci.tech−archive.net/Archive/sci.physics/2008−04/msg00016.html
• From: Cutix
• Date: Mon, 31 Mar 2008 18:49:40 −0700 (PDT)
On Mar 31, 7:35 am, Cutix wrote:
On Mar 31, 7:20 am, tadchem wrote:
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With your high IQ, You should have applied for president of
the
National Academy of Science.
That is a political position.
Anyway. You are a chemist so I guess
you are familiar with quantum chemistry. Say. In a molecule.
How
can you tell whether the electrons in the atoms are being
measured
by other electrons?
"Measurement" is an anthropocentric concept. Each electron in the atom/
molecule interacts with the wave functions of the other electrons in
the system due to spatial overlap. The Pauli Exclusion Principle
applies to fermions − no two may occupy the same state (i.e. have the
same wave function).
Re: Physics of Al Gore 1
Re: Physics of Al Gore
I mean.. how can one tell whether the atoms
in the molecules are in superposition or whether they have
undergone self−measurement
"self−measurement"? WTF is that supposed to mean? Without
clarification of this term, I cannot address the remainder of your
query.
Remember Schrodinger's Cat. When not being measured,
it is in superposition between being alive and dead. Although
this works more efficient in microscopic objects such as
electrons. So what I mean is that inside a molecule, the
electrons are in superposition of being right, left, etc. In
other words, it is everywhere or all states possible. When
I said self−measurement. I mean another electron from
another atom interacting with the electron in a particular
atom. Here the electrons between them interacts and
are being measured hence no longer in superposition but
fixed in one state or has Eigenvalues. Now I'd like to know what
are the circumstances in which the electrons inside the atoms of
the molecules are in superposition just like in Schrodinger Cat
or has definite state like the box opened and the cat being alive
or dead. When I watch a molecule. I imagine the internal
parts of it especially the electrons are smeared just like
Schrodinger Cat. Does the smearing (tendency to be in
superposition) differs in different molecules or properties?
Cu
localizing the electrons at certain
range or points in space in the atoms?
For the electrons in the molecules to be in superposition. The
phases must be
symmetric.
Two disconnected fragments of sentences do not constitute a completed
thought.
Re: Physics of Al Gore 2
Re: Physics of Al Gore
I wonder what kind of molecular activities can
make it antisymmetric hence decohering the superposition?
If you are trying to talk about the superposition of atomic wave
functions to form molecular orbitals, consider the case of two
interacting orbitals. The wave functions may add together in phase
with each other, or out of phase with each other. In one case they
will form a new orbital with a total energy slightly lower than that
of the sum of the constituent orbitals, and in the other the energy
will be slightly higher. The total energy of the two molecular
orbitals will be the same as that of the atomic orbitals from which
they formed, but because two electrons with opposed spins may occupy
the same orbital (the different spin states insure that the Pauli
Principle does not apply), the combined atoms may exhibit a lower
total energy than the separated atoms − and a bond is formed.
I am not sure how you are trying to use the word "decohering" in this
context:http://www.onelook.com/?w=decohere&loc=scworef&scwo=1&ls=a
Also say the inside of the molecule is in superposition
???"inside of the molecule is in superposition"???
but
the atoms outside (the surface) is not owing to thermal
exposure,
???"thermal exposure"???
where's the line in the molecules where the
electrons are in superposition and where they are decohered
or localized as point electrons??
I'm sorry, but your use of vocabulary in attempting to describe
quantum mechanics on the atomic/molecular level does not appear to
Re: Physics of Al Gore 3
Re: Physics of Al Gore
follow standard practice. In all technical discussions, terms with
precisely defined technical meanings appropriate for that context
cannot be used in a cavalier manner, as it can only create
misunderstanding.
Tom Davidson
Richmond, VA− Hide quoted text −
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Let's talk in the copenhagen context. When one observes
say the double slit, the wave function collapse. Inside
a molecule where there are no observations being made.
Does this mean the atoms inside the molecules are in
superposition? What kind of superposition? I heard there are
two kinds of superposition, one where interference is possible,
one where it is not. In the latter where interference is possible,
weird things can happen such as an electron interfering
with itself in the double slit.
Now supposed you are holding a molecule such as stone.
Are the atoms inside the atom in superposition? If yes, are
they of the interference variety or not?
Does this mean that without cutting or looking inside
the stone or any molecule. The inside of the stone or molecule
doesn't exactly exist as solid but in smeared clouds like
Schrodinger's Cat or the electron/atom in double slit?
Cu
.
Re: Physics of Al Gore 4