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- Path: sparky!uunet!wupost!ukma!darwin.sura.net!spool.mu.edu!agate!agate!matt
- From: matt@physics.berkeley.edu (Matt Austern)
- Newsgroups: sci.physics
- Subject: Re: Solid-state doesn't use QED! (Was Re: Particle Research)
- Date: 8 Nov 92 12:07:04
- Organization: Lawrence Berkeley Laboratory (Theoretical Physics Group)
- Lines: 28
- Message-ID: <MATT.92Nov8120704@physics.berkeley.edu>
- References: <gewIg2C00WBL01w4Qz@andrew.cmu.edu> <3NOV199213063917@erich.triumf.ca>
- <BxA2GC.6yE@wsrcc.com> <1992Nov7.121305.1@cubldr.colorado.edu>
- <BxEuvI.59p@wsrcc.com>
- Reply-To: matt@physics.berkeley.edu
- NNTP-Posting-Host: physics.berkeley.edu
- In-reply-to: alison@wsrcc.com's message of Sun, 8 Nov 1992 18:47:41 GMT
-
- In article <BxEuvI.59p@wsrcc.com> alison@wsrcc.com (Alison Chaiken) writes:
-
- > What is the Anderson-Higgs mechanism? My very limited understanding
- > of the Higgs mechanism is that a new gauge boson (which would be
- > called a collective mode in solid-state) is postulated to explain how
- > the fundamental particles (which would be the quasiparticles) obtain
- > their different mass energies (which would be the effective mass).
-
- When high-energy theorists talk about the Higgs mechanism, what they
- mean is somewhat more general than that. It's just how if a gauge
- symmetry is broken spontaneously, then there aren't any Goldstone
- bosons, but, instead, the gauge bosons become massive. (Intuitively:
- the modes that would be Goldstons bosons if it were a global symmetry
- instead of a gauge symmetry get "eaten" by the gauge bosons, and
- become the gauge bosons' longitudinal modes.)
-
- My understanding is that solid-state theorists do indeed work with
- models in which this happens. (e.g., massive photons in
- superconductors) It wouldn't surprise me, though, if solid-state
- people know it by a different name than the "Higgs mechanism." It
- certainly is a very general concept, and it was independently
- discovered by many people. One book, in fact, refers to it as the
- Brout-Englert-Higgs-Guralnik-Hagen-Kibble mechanism!
- --
- 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!
-