Molecular superfluid phase in systems of one-dimensional multicomponent fermionic cold atoms
Strongly Correlated Electrons
2011-10-13 v2
Abstract
We study a simple model of N-component fermions with contact interactions which describes fermionic atoms with N=2F+1 hyperfine states loaded into a one-dimensional optical lattice. We show by means of analytical and numerical approaches that, for attractive interaction, a quasi-long-range molecular superfluid phase emerges at low density. In such a phase, the pairing instability is strongly suppressed and the leading instability is formed from bound-states made of N fermions. At small density, the molecular superfluid phase is generic and exists for a wide range of attractive contact interactions without an SU(N) symmetry between the hyperfine states.
Cite
@article{arxiv.0706.0609,
title = {Molecular superfluid phase in systems of one-dimensional multicomponent fermionic cold atoms},
author = {S. Capponi and G. Roux and P. Lecheminant and P. Azaria and E. Boulat and S. R. White},
journal= {arXiv preprint arXiv:0706.0609},
year = {2011}
}