Are strange metals -- metallic states that are not describable by the traditional theory of metals (Landau's Fermi liquid theory) -- described by a quantum critical theory?
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6$\begingroup$ I'm not a great fan of this question because it doesn't have an answer yet because we don't know. This kind of question simply invites controversy and grandstanding. If it said "what experimental aspects of strange metals are explained by quantum criticality?" Then there can be a sensible discussion. $\endgroup$– gennethCommented Feb 19, 2011 at 23:35
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4$\begingroup$ A link or basic explanation of "strange metal" would be useful to those of us who read the title and said "Huh?!?". $\endgroup$– dmckee --- ex-moderator kittenCommented Feb 20, 2011 at 1:48
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4$\begingroup$ -1. Please edit the question for clarity and detail. $\endgroup$– user346Commented Feb 20, 2011 at 3:00
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1 Answer
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There has been a lot of work on quantum criticality and its CFT equivalence with AdS. Take a look at:
String Theory, Quantum Phase Transitions and the Emergent Fermi-Liquid Authors: Mihailo Cubrovic, Jan Zaanen, Koenraad Schalm
http://arxiv.org/abs/0904.1993
Another paper which is less conformal field related is
Quantum Criticality in Heavy Fermion Metals Authors: Philipp Gegenwart, Qimiao Si, Frank Steglich (Submitted on 13 Dec 2007 (v1), last revised 31 Jan 2008 (this version, v2))
answered Feb 19, 2011 at 23:13