BCS-BEC crossover in spatially modulated fermionic condensates

Details BCS-BEC crossover in spatially modulated fermionic condensates BCS-BEC crossover in spatially modulated fermionic condensates

2011-06-07

arxiv.org/abs/1106.1321v1

J.Phys.Conf.Ser.321:012028,2011

Physics

Nuclear Physics

Nuclear Theory

6 pages, 6 figures. to appear in Journal of Physics: Conference Series (JPCS); contribution to "Many-body correlations from di

Scientific paper

10.1088/1742-6596/321/1/012028

Several novel multi-component fermionic condensates show universal behavior under imbalance in the number of fermionic species. Here I discuss their phase structure, thermodynamics, and the transition from the weak (BCS) to strong (BEC) coupling regime. The inhomogeneous superconducting phases are illustrated on the example of the Fulde-Ferrell phase which appears in the weak coupling regime, at low temperatures and large asymmetries. The inhomogeneous phases persist through the crossover up to (and possibly beyond) the transition to the strong coupling regime.

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