The Quantum-Classical Metal

Details The Quantum-Classical Metal The Quantum-Classical Metal

1997-08-12

arxiv.org/abs/cond-mat/9708081v1

Physics

Condensed Matter

19 pages, RevTeX, 3 eps figures

Scientific paper

In a normal Fermi liquid, Landau's theory precludes the loss of single fermion, quantum coherence in the low energy/temperature limit. For highly anisotropic, strongly correlated metals there is no proof that this remains the case: we propose that quantum coherence for transport in some directions may be lost intrinsically. This should stabilize a novel, qualitatively anisotropic non-Fermi liquid, separated by a novel zero temperature, quantum phase transition from the Fermi liquid state and categorized by the unobservability of certain interference effects. There is compelling experimental evidence for this transition as a function of magnetic field in the metallic phase of the organic conductor (TMTSF)_2PF_6.

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