Universal Density Shift Coefficients for the Thermal Conductivity and Shear Viscosity of a Unitary Fermi Gas
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866912128263258112 |
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| author | Li, Xiang Huang, J. Thomas, J. E. |
| author_facet | Li, Xiang Huang, J. Thomas, J. E. |
| contents | 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 | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_14104 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Universal Density Shift Coefficients for the Thermal Conductivity and Shear Viscosity of a Unitary Fermi Gas Li, Xiang Huang, J. Thomas, J. E. Quantum Gases 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. |
| title | Universal Density Shift Coefficients for the Thermal Conductivity and Shear Viscosity of a Unitary Fermi Gas |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2402.14104 |