Theory of a Fermi-Liquid-to-Non-Fermi-Liquid Quantum Phase Transition in Dimensions d>1

Abstract

We develop a theory for a generic instability of a Fermi liquid in dimension d>1 against the formation of a Luttinger-liquid-like state. The density of states at the Fermi level is the order parameter for the ensuing quantum phase transition, which is driven by the effective interaction strength. A scaling theory in conjunction with an effective field theoy for clean electrons is used to obtain the critical behavior of observables. In the Fermi-liquid phase the order-parameter susceptibility, which is measurable by tunneling, is predicted to diverge for 1<d<3.

4pp

References in corpus (2)

• Quantum Criticality in Heavy Fermion Metals
• Measuring the one-particle excitations of ultracold fermionic atoms by stimulated Raman spectroscopy

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• Quantum Correlations in Metals that Grow in Time and Space