Mean-field analysis of quantum phase transitions in a periodic optical superlattice
Journal Article
·
· Physical Review. A
- Indian Institute of Astrophysics, II Block, Koramangala, Bangalore 560 034 (India)
- Department of Physics, Goa University, Taleigao Plateau, Goa 403 206 (India)
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.
- OSTI ID:
- 22068776
- Journal Information:
- Physical Review. A, Vol. 84, Issue 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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