Phases of dipolar bosons in a bilayer geometry

Cinti, Fabio ; Wang, Daw-Wei ; Boninsegni, Massimo (2017)

CITATION: Cinti, F., Wang, D. W. & Boninsegni, M. 2017. Phases of dipolar bosons in a bilayer geometry. Physical Review A, 95(2):023622, doi:10.1103/PhysRevA.95.023622.

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We study, by first-principles computer simulations, the low-temperature phase diagram of bosonic dipolar gases in a bilayer geometry as a function of the two control parameters, i.e., the in-plane density and the interlayer distance.We observe four distinct phases, namely, paired and decoupled superfluids, as well as a crystal of dimers and one consisting of two aligned crystalline layers. A direct quantum phase transition from a dimer crystal to two independent superfluids is observed in a relatively wide range of parameters. No supersolid phase is predicted for this system.

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