Excess energy of an ultracold Fermi gas in a trapped geometry

Details Excess energy of an ultracold Fermi gas in a trapped geometry Excess energy of an ultracold Fermi gas in a trapped geometry

2011-04-25

arxiv.org/abs/1104.4708v3

Physics

Condensed Matter

Quantum Gases

7 pages, 4 figures

Scientific paper

We have explored finite size and inter-particle interaction corrections to the average energy of a harmonically trapped Fermi gas below and above the Fermi temperature, and have obtained a better fitting for the excess energy reported by DeMarco and Jin [Science $\textbf{285}$, 1703 (1999)]. We have presented a perturbative calculation within a mean field approximation. Our calculation also reproduces the Thomas-Fermi and classical results at the two extreme limits of temperature.

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