Publication
Title
Tackling fluctuation corrections in the BEC/BCS crossover at nonzero temperatures
Author
Abstract
The investigation of superfluid atomic Fermi gases in the regime of strong interactions is conveniently investigated with the path-integral method at temperature zero, or at the critical temperature where the gap vanishes, by taking particle-pair or hole-pair fluctuations into account. Here, we also take the particle-hole excitations into account, which is important to investigate intermediate temperatures. The additional terms in the fluctuation propagator are identified, and a contour integral representation is used to calculate the contribution of these terms to the free energy and to the density of noncondensed fermions.
Language
English
Source (book)
Path integrals: new trends and perspectives: proceedings of the 9th International Conference on Path Integrals, September 23-28, 2007, Dresden, Germany / Janke, W. [edit.]; et al. [edit.]
Publication
Singapore : World Scientific, 2008
ISBN
978-981-283-726-4
Volume/pages
p. 361-367
ISI
000264341000051
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 20.05.2009
Last edited 16.10.2017
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