Bose-representation for a strongly coupled nonequilibrim fermionic superfluid in a time-dependent trap
Other Condensed Matter
2009-11-10 v1
Abstract
Using the functional integral formulation of a nonequilibrium quantum many-body theory we develop a regular description of a Fermi system with a strong attractive interaction in the presence of an external time-dependent potential. In the strong coupling limit this fermionic system is equivalent to a noequilibrium dilute Bose gas of diatomic molecules. We also consider a nonequilibrim strongly coupled Bardeen-Cooper-Schrieffer (BCS) theory and show that it reduces to the full nonlinear time-dependent Gross-Pitaevski (GP) equation, which determines an evolution of the condensate wave function.
Keywords
Cite
@article{arxiv.cond-mat/0401603,
title = {Bose-representation for a strongly coupled nonequilibrim fermionic superfluid in a time-dependent trap},
author = {I. V. Tokatly},
journal= {arXiv preprint arXiv:cond-mat/0401603},
year = {2009}
}
Comments
RevTeX 4, 6 pages, 2 eps figures