29-03-2005 10:02									#121
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Collision operators, kinetic theory, etc.

	29-03-2005 10:18									#122
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nevuhoid of it.

Band theory, Fermi level. k-space. :b

	29-03-2005 11:10									#123
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quote: Originally posted by TCO I like that better.

That's why we didn't have to change our worldview when we invented stat mech

	29-03-2005 11:11									#124
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quote: Originally posted by TCO Band theory, Fermi level

...both of which require an understanding of quantum principles...

	29-03-2005 11:17									#125
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quote: Originally posted by KrazyHorse ...both of which require an understanding of quantum principles...

Yes but at least they are electrons. Not evil particle physics crap.

	29-03-2005 11:23									#126
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quote: Originally posted by TCO Yes but at least they are electrons. Not evil particle physics crap.

Plus Boltzman or F-D statistics seem more comfortable...

	29-03-2005 11:24									#127
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Lot's of intuitive ways chemists can understand it...

	29-03-2005 11:28									#128
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quote: Originally posted by TCO Plus Boltzman or F-D statistics seem more comfortable...

Just because you haven't thought hard enough about it.

What about fact that fermions in F-D distribution are indistinguishable (even theoretically)?

This makes big difference as to multiplicity, yet cannot be justified by ordinary physical intuition...

	29-03-2005 11:29									#129
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Boltzmann distribution only depends on classical mechanics.

F-D and B-E have many spooky effects which are only understood in light of quantum...

	29-03-2005 11:52									#130
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I really dislike the fact that you counter our rants with well-thought responses, KH. It puts our side of the debate in an unnatural disadvantage.

	29-03-2005 11:59									#131
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Go back to the part where you were all roasting PA for being a stupid douchebag.

	29-03-2005 12:03									#132
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quote: Lot's of intuitive ways chemists can understand it...

	29-03-2005 12:04									#133
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quote: Originally posted by Azazel I really dislike the fact that you counter our rants with well-thought responses, KH. It puts our side of the debate in an unnatural disadvantage.

This is what I think about for a living...

	29-03-2005 12:12									#134
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Hmmm.

Number of classes I've taken which involve knowing quantum mechanics:

Quantum 1
Quantum 2
Graduate quantum
Nuclear physics
Particle physics
Statistical Mechanics
Graduate Stat mech 1
Graduate stat mech 2
Graduate EM 1
Graduate EM 2
Condensed Matter 1
Condensed Matter 2
Quantum Field Theory 1
Quantum Field Theory 2
Group theoretic methods in physics
Advanced condensed matter (condensed matter field theory)

16

	29-03-2005 12:33									#135
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well, hurray for you.

	13-05-2005 18:35									#136
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So how does the single electron know ahead of time whether there is one slit or two slits open?

	13-05-2005 19:18									#137
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but doesnt quantum theory disprove itself by the uncertainty principle?

the theory can be applied but the measurments could be wrong

	13-05-2005 19:24									#138
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quote: Originally posted by DeathByTheSword but doesnt quantum theory disprove itself by the uncertainty principle? the theory can be applied but the measurments could be wrong

No. The fact is that there are ramifications to the uncertaincy principle. Also, quantum mechanics doesn't predict a certain measurement, but probability of a certain measurement. It's just a non-deterministic theory. (Although this is in its basis through quantum mechanics - QM says that nature itself is non-deterministic, and has no hidden variables, as opposed to something such as Statistical Mechanics which is based on the statistics of large numbers of classical particles and such, which is deterministic (And the classical distribution of SM, the Maxwell-Boltzmann distribution, is technically an approximation because it is classical, although there are quantum mechanical versions that take into account of QM; Bose-Einstein and Fermi-Dirac, for bosons/fermions respectively)

It may seem ironic - that a theory based on uncertainty can predict something, but it's true.

	13-05-2005 19:31									#139
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My proposal for what we should do:

quote: Go back to the part where you were all roasting PA for being a stupid douchebag.

	13-05-2005 20:51									#140
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quote: Originally posted by Park Avenue So how does the single electron know ahead of time whether there is one slit or two slits open?

the electron talks to it's buddies, see...

JM

	13-05-2005 22:39									#141
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quote: Originally posted by Park Avenue So how does the single electron know ahead of time whether there is one slit or two slits open?

The "single electron" is not localised. It takes all available paths to the target at once.

	13-05-2005 22:44									#142
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Sounds quite spiritual and shamanic. Takes all possible ways at once...