Abstract
We study the validity range of the semiclassical Boltzmann equation in describing the dynamics of two-dimensional Fermi gas. Here we numerically solve the Boltzmann equation based on the relaxation-time approximation. By comparing the numerically extracted damping of the quadrupole mode with the experimental data reported in Vogt et al. [Phys. Rev. Lett. 108, 070404 (2012)], we demonstrate that the Boltzmann equation is applicable at least when the temperature is larger than 0.47TF , up to the strong coupling regime, where TF is the Fermi temperature.
| Original language | English |
|---|---|
| Article number | 045601 |
| Number of pages | 4 |
| Journal | Physical Review A |
| Volume | 85 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 12 Apr 2012 |
Keywords
- Boltzmann equation
- fermi gas
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Cite this
Wu, L., & Zhang, Y. (2012). Applicability of the Boltzmann equation for a two-dimensional Fermi gas. Physical Review A, 85(4), [045601]. https://doi.org/10.1103/PhysRevA.85.045601