Reentrant transition of bosons in a quasiperiodic potential

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.

arXiv commentAccepted for publication in EPL

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Cited by in corpus (4)

• Non-standard Hubbard models in optical lattices: a review
• Bose-Hubbard model with occupation dependent parameters
• Strongly interacting bosons in multi-chromatic potentials supporting mobility edges: localization, quasi-condensation and expansion dynamics
• Reentrant transition of bosons in a quasiperiodic potential