Stable dilute supersolid of two-dimensional dipolar bosons

Abstract

We consider two-dimensional bosonic dipoles oriented perpendicularly to the plane. On top of the usual two-body contact and long-range dipolar interactions we add a contact three-body repulsion as expected, in particular, for dipoles in the bilayer geometry with tunneling. The three-body repulsion is crucial for stabilizing the system, and we show that our model allows for stable continuous space supersolid states in the dilute regime and calculate the zero-temperature phase diagram.

revised version, 5 pages, 2 figures, with 3 pages supplementary material

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• Two-dimensional supersolidity in a planar dipolar Bose gas
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• Quantum dilute droplets of dipolar bosons at finite temperature
• Absence of superfluidity in 2D dipolar Bose striped crystals
• Few-body bound states of two-dimensional bosons
• Fragmented-condensate solid of dipolar excitons
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• Compressibility and speeds of sound across the superfluid to supersolid phase transition of an elongated dipolar gas
• Three-body interaction near a narrow two-body zero crossing
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• Tunable strongly interacting dipolar excitons in hybrid perovskites
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• Anomalous supersolidity in a weakly interacting dipolar Bose mixture on a square lattice
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• Quantum crystallography of Rydberg-dressed Bose gases on a square lattice
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