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- Path: sparky!uunet!stanford.edu!agate!dog.ee.lbl.gov!csa2.lbl.gov!sichase
- From: sichase@csa2.lbl.gov (SCOTT I CHASE)
- Newsgroups: sci.physics
- Subject: Re: the nature of exclusion
- Date: 20 Aug 92 02:52:29 GMT
- Organization: Lawrence Berkeley Laboratory - Berkeley, CA, USA
- Lines: 23
- Distribution: na
- Message-ID: <25608@dog.ee.lbl.gov>
- References: <1992Aug14.210429.23650@galois.mit.edu> <1992Aug18.214628.9544@math.ucla.edu>
- Reply-To: sichase@csa2.lbl.gov
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-
- In article <1992Aug18.214628.9544@math.ucla.edu>, barry@arnold.math.ucla.edu (Barry Merriman) writes...
- >
- >It would seem that this way I can compress spatially (by pushing with
- >my hands) and compress in the velocity coordinate (by cooling), so
- >that I am achieving a compression on phase space. Now, how does
- >the "statistical repulsion" kick in to resist this?
- >
-
- The best way to understand this effect is by optical analogy. Imagine doing
- an optical interference experiment, and putting some kind of detector at
- a minimum in the interference pattern. You record no photons. What force
- drove the photons away from emerging from the interferometer at that angle?
- When you understand the answer to this question, then you also understand
- why you can never measure two identical fermions in the same phase space cell.
-
- -Scott
-
- --------------------
- Scott I. Chase "The question seems to be of such a character
- SICHASE@CSA2.LBL.GOV that if I should come to life after my death
- and some mathematician were to tell me that it
- had been definitely settled, I think I would
- immediately drop dead again." - Vandiver
-