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arXiv · 1005.1906

Reentrant transition of bosons in a quasiperiodic potential

A. Cetoli·E. Lundh
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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.

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A. Cetoli, E. Lundh. 2010-05-11. Reentrant transition of bosons in a quasiperiodic potential. https://doi.org/10.1209/0295-5075%2F90%2F46001

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