Fermions at unitarity and Haldane Exclusion Statistics

Details Fermions at unitarity and Haldane Exclusion Statistics Fermions at unitarity and Haldane Exclusion Statistics

2006-06-05

arxiv.org/abs/cond-mat/0606117v2

Physics

Condensed Matter

Other Condensed Matter

4 pages, 1 postscript figure

Scientific paper

10.1088/0953-4075/40/10/012

We consider a gas of neutral fermionic atoms at ultra-low temperatures, with the attractive interaction tuned to Feshbach resonance. We calculate, the variation of the chemical potential and the energy per particle as a function of temperature by assuming the system to be an ideal gas obeying the Haldane-Wu fractional exclusion statistics. Our results for the untrapped gas compare favourably with the recently published Monte Carlo calculations of two groups. For a harmonically trapped gas, the results agree with experiment, and also with other published work.

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