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arXiv · 2102.10533

Residual bulk viscosity of a disordered 2D electron gas

V. A. Zakharov·I. S. Burmistrov
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Abstract

The nonzero bulk viscosity signals breaking of the scale invariance. We demonstrate that a disorder in two-dimensional noninteracting electron gas in a perpendicular magnetic field results in the nonzero disorder-averaged bulk viscosity. We derive analytic expression for the bulk viscosity within the self-consistent Born approximation. This residual bulk viscosity provides the lower bound for the bulk viscosity of 2D interacting electrons at low enough temperatures.

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V. A. Zakharov, I. S. Burmistrov. 2021-02-21. Residual bulk viscosity of a disordered 2D electron gas. https://doi.org/10.1103/physrevb.103.235305

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