BCS-BEC crossover in spatially modulated fermionic condensates
Abstract
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.
- Publication:
-
Journal of Physics Conference Series
- Pub Date:
- September 2011
- DOI:
- 10.1088/1742-6596/321/1/012028
- arXiv:
- arXiv:1106.1321
- Bibcode:
- 2011JPhCS.321a2028S
- Keywords:
-
- Nuclear Theory;
- Condensed Matter - Quantum Gases
- E-Print:
- 6 pages, 6 figures. to appear in Journal of Physics: Conference Series (JPCS)