All Title Author
Keywords Abstract

Physics  2005 

Vortex-Antivortex Lattice in Ultra-Cold Fermi Gases

DOI: 10.1103/PhysRevLett.96.040404

Full-Text   Cite this paper   Add to My Lib


We discuss ultra-cold 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 T_c, 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 T_M.


comments powered by Disqus