Universal density shift coefficients for the thermal conductivity and shear viscosity of a unitary Fermi gas
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 th...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2024-10-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.6.L042021 |
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| _version_ | 1850207367625441280 |
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| author | Xiang Li J. Huang J. E. Thomas |
| author_facet | Xiang Li J. Huang J. E. Thomas |
| author_sort | Xiang Li |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-5cf8b33cdc0d473e928ae0bc1b67d3e1 |
| institution | OA Journals |
| issn | 2643-1564 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-5cf8b33cdc0d473e928ae0bc1b67d3e12025-08-20T02:10:32ZengAmerican Physical SocietyPhysical Review Research2643-15642024-10-0164L04202110.1103/PhysRevResearch.6.L042021Universal density shift coefficients for the thermal conductivity and shear viscosity of a unitary Fermi gasXiang LiJ. HuangJ. E. ThomasWe 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.http://doi.org/10.1103/PhysRevResearch.6.L042021 |
| spellingShingle | Xiang Li J. Huang J. E. Thomas Universal density shift coefficients for the thermal conductivity and shear viscosity of a unitary Fermi gas Physical Review Research |
| title | Universal density shift coefficients for the thermal conductivity and shear viscosity of a unitary Fermi gas |
| title_full | Universal density shift coefficients for the thermal conductivity and shear viscosity of a unitary Fermi gas |
| title_fullStr | Universal density shift coefficients for the thermal conductivity and shear viscosity of a unitary Fermi gas |
| title_full_unstemmed | Universal density shift coefficients for the thermal conductivity and shear viscosity of a unitary Fermi gas |
| title_short | Universal density shift coefficients for the thermal conductivity and shear viscosity of a unitary Fermi gas |
| title_sort | universal density shift coefficients for the thermal conductivity and shear viscosity of a unitary fermi gas |
| url | http://doi.org/10.1103/PhysRevResearch.6.L042021 |
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