Searching for a Supersolid in Cold Atom Optical Lattices

Abstract

We suggest a technique for the observation of a predicted supersolid phase in extended Bose-Hubbard models which are potentially realizable in cold atom optical lattice systems. In particular, we discuss important subtleties arising from the existence of the trapping potential which leads to an externally imposed (as opposed to spontaneous) breaking of translational invariance. We show, by carefully including the trapping potential in our theoretical formalism, that noise correlations could prove instrumental in identifying the supersolid and density wave phases. We also find that the noise correlation peak width scales inversely with the relative size of trapped Mott domains.

arXiv comment5 pages, 4 figures

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Cited by in corpus (62)

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• Orbital superfluidity in the $P$-band of a bipartite optical square lattice
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• Nonequilibrium Phase Diagram of a Driven-Dissipative Many-Body System
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• Realization of effective super Tonks-Girardeau gases via strongly attractive one-dimensional Fermi gases
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• Successive phase transitions at finite temperatures of the supersolid in the three-dimensional extended Bose-Hubbard model
• Supersolidity of cold-atom Bose-Fermi mixtures in optical lattices
• Quantum phases of tilted dipolar bosons in two-dimensional optical lattice
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• Supersolidity of lattice Bosons immersed in strongly correlated Rydberg dressed atoms
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• Quench dynamics of Rydberg-dressed bosons on two-dimensional square lattices
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• Strong-coupling phases of trions and excitons in electron-hole bilayers at commensurate densities
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