Mott Domains of Bosons Confined on Optical Lattices

G. G. Batrouni, V. Rousseau, R. T. Scalettar, Marcos Antonio Rigol, A. Muramatsu, P. J.H. Denteneer, M. Troyer

Research output: Contribution to journalArticle

261 Citations (Scopus)

Abstract

In the absence of a confining potential, the boson-Hubbard model exhibits a superfluid to Mott insulator quantum phase transition at commensurate fillings and strong coupling. We use quantum Monte Carlo simulations to study the ground state of the one-dimensional bosonic Hubbard model in a trap. Some, but not all, aspects of the Mott insulating phase persist. Mott behavior occurs for a continuous range of incommensurate fillings, very different from the unconfined case, and the establishment of the Mott phase does not proceed via a traditional quantum phase transition. These results have important implications for interpreting experiments on ultracold atoms on optical lattices.

Original languageEnglish (US)
JournalPhysical Review Letters
Volume89
Issue number11
DOIs
StatePublished - Jan 1 2002

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bosons
confining
insulators
traps
ground state
atoms
simulation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Batrouni, G. G., Rousseau, V., Scalettar, R. T., Rigol, M. A., Muramatsu, A., Denteneer, P. J. H., & Troyer, M. (2002). Mott Domains of Bosons Confined on Optical Lattices. Physical Review Letters, 89(11). https://doi.org/10.1103/PhysRevLett.89.117203
Batrouni, G. G. ; Rousseau, V. ; Scalettar, R. T. ; Rigol, Marcos Antonio ; Muramatsu, A. ; Denteneer, P. J.H. ; Troyer, M. / Mott Domains of Bosons Confined on Optical Lattices. In: Physical Review Letters. 2002 ; Vol. 89, No. 11.
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Batrouni, GG, Rousseau, V, Scalettar, RT, Rigol, MA, Muramatsu, A, Denteneer, PJH & Troyer, M 2002, 'Mott Domains of Bosons Confined on Optical Lattices', Physical Review Letters, vol. 89, no. 11. https://doi.org/10.1103/PhysRevLett.89.117203

Mott Domains of Bosons Confined on Optical Lattices. / Batrouni, G. G.; Rousseau, V.; Scalettar, R. T.; Rigol, Marcos Antonio; Muramatsu, A.; Denteneer, P. J.H.; Troyer, M.

In: Physical Review Letters, Vol. 89, No. 11, 01.01.2002.

Research output: Contribution to journalArticle

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Batrouni GG, Rousseau V, Scalettar RT, Rigol MA, Muramatsu A, Denteneer PJH et al. Mott Domains of Bosons Confined on Optical Lattices. Physical Review Letters. 2002 Jan 1;89(11). https://doi.org/10.1103/PhysRevLett.89.117203