Quantum phases in a resonantly-interacting Bose-Fermi mixture
Statistical Mechanics
2014-10-13 v1
Abstract
We consider a resonantly-interacting Bose-Fermi mixture of K and Rb atoms in an optical lattice. We show that by using a red-detuned optical lattice the mixture can be accurately described by a generalized Hubbard model for K and Rb atoms, and K-Rb molecules. The microscopic parameters of this model are fully determined by the details of the optical lattice and the interspecies Feshbach resonance in the absence of the lattice. We predict a quantum phase transition to occur in this system already at low atomic filling fraction, and present the phase diagram as a function of the temperature and the applied magnetic field.
Cite
@article{arxiv.cond-mat/0502328,
title = {Quantum phases in a resonantly-interacting Bose-Fermi mixture},
author = {D. B. M. Dickerscheid and D. van Oosten and E. J. Tillema and H. T. C. Stoof},
journal= {arXiv preprint arXiv:cond-mat/0502328},
year = {2014}
}
Comments
4 pages, 3 figures