Work

Universal density shift coefficients for the thermal conductivity and shear viscosity of a unitary Fermi gas

Year: 2024

Type: article

Abstract: We measure universal temperature-independent density shifts for the thermal conductivity κ T and shear viscosity η , relative to the high temperature limits, for a normal phase unitary Fermi gas confined in a box potential. We show that a time-dependent kinetic theory model enables extraction of the hydrodynamic transport times τ η and τ κ from the time-dependent free decay of a spatially periodic density perturbation, yielding the static transport properties and density shifts, corrected for finite relaxation times. Published by the American Physical Society 2024

Source: Physical Review Research

DOI: 10.1103/physrevresearch.6.l042021

Authors: Xiang Li, J. Huang, J. E. Thomas

Institution: North Carolina State University

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,625

Funders: National Science Foundation, Air Force Office of Scientific Research