Hydrodynamic Relaxation in a Strongly Interacting Fermi Gas
Quantum Gases
2022-03-04 v2
Abstract
We measure the free decay of a spatially periodic density profile in a normal fluid strongly interacting Fermi gas, which is confined in a box potential. This spatial profile is initially created in thermal equilibrium by a perturbing potential. After the perturbation is abruptly extinguished, the dominant spatial Fourier component exhibits an exponentially decaying (thermally diffusive) mode and a decaying oscillatory (first sound) mode, enabling independent measurement of the thermal conductivity and the shear viscosity directly from the time-dependent evolution.
Cite
@article{arxiv.2112.00549,
title = {Hydrodynamic Relaxation in a Strongly Interacting Fermi Gas},
author = {Xin Wang and Xiang Li and Ilya Arakelyan and J. E. Thomas},
journal= {arXiv preprint arXiv:2112.00549},
year = {2022}
}
Comments
16 pages, 12 Figures