Vortex-antivortex lattice in ultracold fermionic gases |
| |
Authors: | Botelho S S Sá de Melo C A R |
| |
Affiliation: | School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA. |
| |
Abstract: | We discuss ultracold Fermi gases in two dimensions, which could be realized in a strongly confining one-dimensional optical lattice. We obtain the temperature versus effective interaction phase diagram for an s-wave superfluid and show that, below a certain critical temperature Tc, spontaneous vortex-antivortex pairs appear for all coupling strengths. In addition, we show that the evolution from weak-to-strong coupling is smooth, and that the system forms a square vortex-antivortex lattice at a lower critical temperature TM. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|