Mean field analysis of quantum phase transitions in a periodic optical superlattice
arXiv:1203.1385 · doi:10.1103/PhysRevA.84.033631
Abstract
In this paper we analyze the various phases exhibited by a system of ultracold bosons in a periodic optical superlattice using the mean field decoupling approximation. We investigate for a wide range of commensurate and incommensurate densities. We find the gapless superfluid phase, the gapped Mott insulator phase, and gapped insulator phases with distinct density wave orders.
6 pages, 7 figures, 4 tables
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Cited by in corpus (5)
- Three body on-site interactions in ultracold bosonic atoms in optical lattices and superlattices
- Quantum phases of attractive bosons on a Bose-Hubbard ladder with three-body constraint
- Mean-field phase diagram of ultracold atomic gases in cavity quantum electrodynamics
- Trimer superfluid and supersolid on two-dimensional optical lattices
- Quantum phases of constrained bosons on a two-leg Bose-Hubbard ladder