home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.physics
- Path: sparky!uunet!spool.mu.edu!enterpoop.mit.edu!galois!riesz!jbaez
- From: jbaez@riesz.mit.edu (John C. Baez)
- Subject: Re: knots and stat.mech.
- Message-ID: <1993Jan11.210616.12263@galois.mit.edu>
- Keywords: invariant polynomials, partition functions, knots
- Sender: news@galois.mit.edu
- Nntp-Posting-Host: riesz
- Organization: MIT Department of Mathematics, Cambridge, MA
- References: <1993Jan8.215127.4208@smsc.sony.com> <1993Jan9.032758.29783@murdoch.acc.Virginia.EDU> <1ilhod$d4r@agate.berkeley.edu>
- Date: Mon, 11 Jan 93 21:06:16 GMT
- Lines: 38
-
- In article <1ilhod$d4r@agate.berkeley.edu> srihari@sam.cchem.berkeley.edu (Srihari Keshavamurthy) writes:
- >I have a question for the experts out there. I understand that the
- >q-state potts model's partition function is a knot invariant. My
- >question is that given a say 2d lattice model, is it possible that
- >the corresponding partition function can always be identified with
- >some knot invariant?
-
- I answered this one on sci.physics already - are we suffering from a
- time lag? To repeat, the partition function for the q-state Potts model
- is NOT a knot invariant; it's related to the 3-variable Kauffman
- bracket, but not to the 1-variable specialization of the Kauffman
- bracket that is a knot invariant.
-
- >Another question is that if you are describing
- >a knotted system like say DNA or some such physical system then does the
- >indep. variable in the knot polynomial correspond to some physical
- >parameter? While I am at it, what is the best reference to learn
- >about quantum groups without a heavy emphasis on the mathematical
- >aspects, apart from the "Baez articles" of course :). Thanks.
-
- The "Baez articles" are about the worst way to learn about quantum groups
- since I don't think I ever got around to defining quantum groups!!
- For quantum groups I would try:
-
- Quantum groups and non-commutative geometry / Yu. I. Manin.
- Montreal, QC, Canada : Centre de recherches mathematiques, Universite de
- Montreal, [1988?]
-
- Drinfeld, V.: Quantum groups, {\sl Proc.\ Int.\
- Cong.\ Math.\ }(1986), 798-820
-
- and for some connections with physics and loads of references,
-
- Majid, S.: Quasitriangular Hopf algebras and Yang-Baxter
- equations, {\sl Int.\ Jour.\ Mod.\ Phys.\ A} {\bf 5} (1990), 1-91.
-
- Vijanathi Chari and Andrew Pressley are writing a very good book on
- quantum groups, but it'll be a while before this gets published.
-