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29 March 2024
 
  » arxiv » 1005.1906

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Reentrant transition of bosons in a quasiperiodic potential
A. Cetoli ; E. Lundh ;
Date 11 May 2010
AbstractWe 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.
Source arXiv, 1005.1906
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