Superfluid phases of spin-1 bosons in cubic optical lattice
Quantum Gases
2015-06-17 v2
Abstract
We analyze theoretically the emergence of different superfluid phases of spin-1 bosons in a three-dimensional cubic optical lattice by generalizing the recently developed Ginzburg-Landau theory for the Bose-Hubbard model to a spinor Bose gas. In particular at zero temperature, our theory distinguishes within its validity range between various superfluid phases for an anti-ferromagnetic interaction with an external magnetic field. In addition, we determine that the superfluid-Mott insulator phase transition is of second order and that the transitions between the respective superfluid phases with anti-ferromagnetic interaction can be both of first and second order.
Keywords
Cite
@article{arxiv.1309.7449,
title = {Superfluid phases of spin-1 bosons in cubic optical lattice},
author = {Mohamed Mobarak and Axel Pelster},
journal= {arXiv preprint arXiv:1309.7449},
year = {2015}
}
Comments
Laser Physics Letters 10, 115501(2013)