Temperature of a trapped unitary Fermi gas at finite entropy

被引：50
|
作者：
Hu, H [1 ]
Liu, XJ [1 ]
Drummond, PD [1 ]
机构：
[1] Univ Queensland, Dept Phys, ARC Ctr Excellence Quantum Atom Opt, Brisbane, Qld 4072, Australia
来源：
PHYSICAL REVIEW A | 2006年 / 73卷 / 02期
关键词：
D O I：
10.1103/PhysRevA.73.023617
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present theoretical predictions for the equation of state of a harmonically trapped Fermi gas in the unitary limit. Our calculations compare Monte Carlo results with the equation of state of a uniform gas using three distinct perturbation schemes. We show that in experiments the temperature can be usefully calibrated by making use of the entropy, which is invariant during an adiabatic conversion into the weakly interacting limit of molecular BEC. We predict the entropy dependence of the equation of state.
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页数：5
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