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- From: braham@physics.ubc.ca (Stephen Braham)
- Subject: Re: Quantum Cosmological Boundaries and Determinisim?
- Message-ID: <braham.711913214@physics.ubc.ca>
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- Organization: University of British Columbia, Vancouver, B.C., Canada
- References: <braham.711770201@physics.ubc.ca> <92204.111241MRG3@psuvm.psu.edu> <mcirvin.711851892@husc8> <1992Jul23.153811.5380@galois.mit.edu>
- Date: Thu, 23 Jul 1992 17:40:14 GMT
- Lines: 25
-
- jbaez@riesz.mit.edu (John C. Baez) writes:
-
- > [stuff deleted]
-
- >classical mechanics).) This is the basis of Hawking radiation and his
- >later predictions that virtual black holes might make time evolution
- >turn pure states into mixed states -- which he represents by a
- >"superscattering operator". This of course would seem to give an arrow
- >of time. Confusion reigns, as far as I'm concerned.
-
- <grin>, a wonderful understatement :). Don Page recently gave a status
- report on this stuff (actually, I heard the talk twice- once at
- Banff, 2 months ago, and also last week, here at the UBC GR group),
- and things have not improved, clarity-wise, since I was first in grad school.
- The whole question is begging for an interpretation of quantum mechanics.
- On top of that, the dynamics of BH radiation may be EXTREMELY dependent
- on small scale effects (something I'm trying to work on now), and
- they may NEVER mix the state.
-
- Steve
- --
- | Name: Stephen P. Braham | Perversion: Quantum Cosmologist|
- | Hangout: UBC physics | Signature: Euclidean |
- | Vancouver, BC |--------------------------------+
- | Canada | E-mail: braham@physics.ubc.ca |
-