Viscous Properties of a Degenerate One-Dimensional Fermi Gas

We study the viscous properties of a system of weakly interacting spin-1/2 fermions in one dimension. Accounting for the effect of interactions on the quasiparticle energy spectrum, we obtain the bulk viscosity of this system at low temperatures. Our result is valid for frequencies that are small co...

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Veröffentlicht in:	Physical review letters 2020-08, Vol.125 (7), p.1-076601, Article 076601
Hauptverfasser:	DeGottardi, Wade, Matveev, K. A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Backscattering CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Elementary excitations Energy spectra Fermi gases Fermions Fluid dynamics Fluid flow Hydrodynamics Low temperature Transport properties
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