Cooper problem in a lattice
Abstract
Cooper problem for interacting fermions is solved in a lattice. It is found that the binding energy of the Cooper problem can behave qualitatively differently from the gap parameter of the BCS theory and that pairs of non-zero center of mass momentum are favored in systems with unequal Fermi energies.
- Publication:
-
arXiv e-prints
- Pub Date:
- August 2008
- DOI:
- 10.48550/arXiv.0808.0646
- arXiv:
- arXiv:0808.0646
- Bibcode:
- 2008arXiv0808.0646M
- Keywords:
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- Condensed Matter - Statistical Mechanics;
- Condensed Matter - Superconductivity
- E-Print:
- 4 pages, 3 figures