home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!haven.umd.edu!darwin.sura.net!spool.mu.edu!agate!agate!matt
- From: matt@physics16.berkeley.edu (Matt Austern)
- Newsgroups: sci.physics
- Subject: Re: Solid-state doesn't use QED! (Was Re: Particle Research)
- Date: 8 Nov 92 22:55:53
- Organization: Lawrence Berkeley Laboratory (Theoretical Physics Group)
- Lines: 22
- Message-ID: <MATT.92Nov8225553@physics16.berkeley.edu>
- References: <BxA2GC.6yE@wsrcc.com> <1992Nov6.233219.15750@galois.mit.edu>
- <1992Nov7.034453.2080@murdoch.acc.Virginia.EDU> <23767@galaxy.ucr.edu>
- Reply-To: matt@physics.berkeley.edu
- NNTP-Posting-Host: physics16.berkeley.edu
- In-reply-to: baez@ucrmath.ucr.edu's message of 8 Nov 92 23:20:21 GMT
-
- In article <23767@galaxy.ucr.edu> baez@ucrmath.ucr.edu (john baez) writes:
-
- > In solid state you have
- > quite a bit of choice in terms of finding systems that have roughly some
- > Lagrangian or other, so you can really test your mathematical notions to
- > some extent. (Typically, of course, the real condensed matter system is
- > more complicated than the Lagrangian you guessed for it, so these "tests"
- > are always suspect.)
-
- Oh, but that's the whole point of a renormalization group analysis,
- right? You just show your Lagrangian includes all of the relevant
- parameters.
-
- In a sense, I think that the renormalization group justifies, in
- retrospect, a lot of what physicists have done for over a century:
- modeling a very complicated system by a simple mathematical
- description.
- --
- Matthew Austern Just keep yelling until you attract a
- (510) 644-2618 crowd, then a constituency, a movement, a
- austern@lbl.bitnet faction, an army! If you don't have any
- matt@physics.berkeley.edu solutions, become a part of the problem!
-