Journal
PHYSICAL REVIEW LETTERS
Volume 102, Issue 16, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.160401
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Funding
- ARC Center of Excellence
- ARC Discovery Grants
- NSFC [10774190]
- NFRPC [2006CB921404, 2006CB921306]
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Using a high temperature virial expansion, we present a controllable study of the thermodynamics of strongly correlated Fermi gases near the BEC-BCS crossover region. We propose a practical way to determine the expansion coefficients for both harmonically trapped and homogeneous cases, and calculate the third order coefficient b(3)(T) at finite temperatures T. At resonance, a T-independent coefficient b(3,infinity)(hom)approximate to-0.290 952 95 is determined in free space. These results are compared with a recent thermodynamic measurement of Li-6 atoms, at temperatures below the degeneracy temperature, and with Monte Carlo simulations.
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