S. Capponi, IRSAMC, University of Toulouse
Recent progress in cold atom experiments have attracted interest from the condensed matter community. Indeed, it is now possible to create and manipulate artificial "solids" that mimic strongly correlated systems. Nevertheless, these cold atoms generically have several hyperfine states (larger than 2 for fermions) so that new states of matter could be stabilized. In one-dimension, using powerul analytical and numerical tools, we have shown that multicomponent fermions can exhibit a superfluid phase made of molecules, among other phases. In particular, we will consider a degenerate Fermi gas with three hyperfine states in relation with recent experiments on Lithium.