Heteronuclear Cooper Pairs in An Ultracold Atomic Gas
Abstract
Description
In an ultracold mixture of two different Fermi species of atoms, Cooper pairs can be formed between two different atoms. The masses of one atom and its partner in this kind of Cooper pairs may differ by order of magnitude. In this system, each species of atoms are in the same atomic spin state and two species have the same atomic densities. The pairing gap diminishes if two species have different densities and vanishes when the density imbalance reaches a critical value.
9 pages, 1 figure. After submitting the preprint, C. Heron brought to my attention the fact that similar questions have been considered by Bedaque et al in PRL 91 247002 (2003). No change of content except an error in the references is corrected
9 pages, 1 figure. After submitting the preprint, C. Heron brought to my attention the fact that similar questions have been considered by Bedaque et al in PRL 91 247002 (2003). No change of content except an error in the references is corrected