Physics – Condensed Matter – Superconductivity
Scientific paper
2005-06-30
Phys. Rev. B 72, 144524 (2005).
Physics
Condensed Matter
Superconductivity
21 pages, no figures
Scientific paper
We study the mean-field dynamics of a fermionic condensate interacting with a single bosonic mode (a generalized Dicke model). This problem is integrable and can be mapped onto a corresponding BCS problem. We derive the general solution and a full set of integrals of motion for the time evolution of coupled Fermi-Bose condensates. The present paper complements our earlier study of the dynamics of the BCS model (cond-mat/0407501 and cond-mat/0505493). Here we provide a self-contained introduction to the variable separation method, which enables a complete analytical description of the evolution of the generalized Dicke, BCS, and other similar models.
Altshuler Boris L.
Kuznetsov Vadim B.
Yuzbashyan Emil A.
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