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arXiv · 1005.2403

A superfluid-droplet crystal and a free-space supersolid in a dipole-blockaded gas

F. Cinti·P. Jain·M. Boninsegni·A. Micheli·P. Zoller·G. Pupillo
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Abstract

A novel supersolid phase is predicted for an ensemble of Rydberg atoms in the dipole-blockade regime, interacting via a repulsive dipolar potential "softened" at short distances. Using exact numerical techniques, we study the low temperature phase diagram of this system, and observe an intriguing phase consisting of a crystal of mesoscopic superfluid droplets. At low temperature, phase coherence throughout the whole system, and the ensuing bulk superfluidity, are established through tunnelling of identical particles between neighbouring droplets.

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F. Cinti, P. Jain, M. Boninsegni, A. Micheli, P. Zoller, G. Pupillo. 2010-09-21. A superfluid-droplet crystal and a free-space supersolid in a dipole-blockaded gas. https://doi.org/10.1103/physrevlett.105.135301

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