Reentrant transition of bosons in a quasiperiodic potential
Quantum Gases
2010-07-05 v1
Abstract
We investigate the behavior of a two dimensional array of Bose-Einstein condensate tubes described by means of a Bose-Hubbard Hamiltonian. Using a Wannier function expansion for the wavefunction in each tube, we compute the Bose-Hubbard parameters related to two different longitudinal potentials, periodic and quasiperiodic. We predict that - upon increasing the external potential strength along the direction of the tubes - the condensate can experience a reentrant transition between a Mott insulating phase and the superfluid one.
Keywords
Cite
@article{arxiv.1005.1906,
title = {Reentrant transition of bosons in a quasiperiodic potential},
author = {A. Cetoli and E. Lundh},
journal= {arXiv preprint arXiv:1005.1906},
year = {2010}
}
Comments
Accepted for publication in EPL