Classical behavior of strongly correlated Fermi systems near a quantum critical point. Transport properties

V. A. Khodel; J. W. Clark; M. V. Zverev

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arXiv · 1010.4547

Classical behavior of strongly correlated Fermi systems near a quantum critical point. Transport properties

V. A. Khodel·J. W. Clark·M. V. Zverev

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Abstract

The low-temperature kinetics of the strongly correlated electron liquid inhabiting a solid is analyzed. It is demonstrated that a softly damped branch of transverse zero sound emerges when several bands cross the Fermi surface simultaneously near a quantum critical point at which the density of states diverges. Suppression of the damping of this branch occurs due to a mechanism analogous to that affecting the phonon mode in solids at room temperature, giving rise to a classical regime of transport at extremely low temperatures in the strongly correlated Fermi system.

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V. A. Khodel, J. W. Clark, M. V. Zverev. 2010-10-21. Classical behavior of strongly correlated Fermi systems near a quantum critical point. Transport properties. https://arxiv.org/abs/1010.4547

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