Equation of state of a superfluid Fermi gas in the BCS-BEC crossover

Hu, H., Liu, X. J. and Drummond, P. D. (2006) Equation of state of a superfluid Fermi gas in the BCS-BEC crossover. Europhysics Letters, 74 4: 574-580. doi:10.1209/epl/i2006-10023-y


Author Hu, H.
Liu, X. J.
Drummond, P. D.
Title Equation of state of a superfluid Fermi gas in the BCS-BEC crossover
Journal name Europhysics Letters   Check publisher's open access policy
ISSN 0295-5075
Publication date 2006
Sub-type Article (original research)
DOI 10.1209/epl/i2006-10023-y
Open Access Status Not Open Access
Volume 74
Issue 4
Start page 574
End page 580
Total pages 7
Editor Denis Jerome
Place of publication Les Ulis, France
Publisher E D P Sciences
Collection year 2006
Language eng
Abstract We present a theory for a superfluid Fermi gas near the BCS-BEC crossover, including pairing fluctuation contributions to the free energy similar to that considered by Nozieres and Schmitt-Rink for the normal phase. In the strong coupling limit, our theory is able to recover the Bogoliubov theory of a weakly interacting Bose gas with a molecular scattering length very close to the known exact result. We compare our results with recent Quantum Monte Carlo simulations both for the ground state and at finite temperature. Excellent agreement is found for all interaction strengths where simulation results are available.
Keyword Physics, Multidisciplinary
Superconductivity
Q-Index Code C1

 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 106 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 112 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 15 Aug 2007, 09:50:18 EST