Reentrant transition of bosons in a quasiperiodic potential
arXiv:1005.1906 · doi:10.1209/0295-5075/90/46001
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.
Accepted for publication in EPL
References in corpus (7)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Vortex proliferation in the Berezinskii-Kosterlitz-Thouless regime on a two-dimensional lattice of Bose-Einstein condensates
- Deconfinement in a 2D optical lattice of coupled 1D boson systems
- Superfluid to Bose-glass transition in a 1D weakly interacting Bose gas
- Transition from a two-dimensional superfluid to a one-dimensional Mott insulator
- Reentrant transition of bosons in a quasiperiodic potential
- One-dimensional phase transitions in a two-dimensional optical lattice