Title
Tackling fluctuation corrections in the BEC/BCS crossover at nonzero temperatures Tackling fluctuation corrections in the BEC/BCS crossover at nonzero temperatures
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
conferenceObject
Publication
Singapore :World Scientific, [*]
Subject
Physics
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.]
ISBN - Hoofdstuk
978-981-283-726-4
ISI
000264341000051
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
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.
E-info
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000264341000051&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000264341000051&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
Handle