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

Autor:	Cinti, F., Jain, P., Boninsegni, M., Micheli, A., Zoller, P., Pupillo, G.
Rok vydání:	2010
Předmět:	Condensed Matter - Quantum Gases Condensed Matter - Statistical Mechanics
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.105.135301
Popis:	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. Comment: 4 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1005.2403 Zobrazit plný text záznamu View this record from Arxiv