Observability of Quantum Criticality and a Continuous Supersolid in Atomic Gases
arXiv:0910.1859 · doi:10.1103/PhysRevLett.104.165301
Abstract
We analyze the Bose-Hubbard model with a three-body hardcore constraint by mapping the system to a theory of two coupled bosonic degrees of freedom. We find striking features that could be observable in experiments, including a quantum Ising critical point on the transition from atomic to dimer superfluidity at unit filling, and a continuous supersolid phase for strongly bound dimers.
4 pages, 2 figures, published version (Editor's suggestion)
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