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

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

2010-10-21

arxiv.org/abs/1010.4547v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages

Scientific paper

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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