Supersolid phase in atomic gases with magnetic dipole interaction

Details Supersolid phase in atomic gases with magnetic dipole interaction Supersolid phase in atomic gases with magnetic dipole interaction

2010-12-15

arxiv.org/abs/1012.3341v1

Phys. Rev. A 84, 023607 (2011)

Physics

Condensed Matter

Quantum Gases

4 pages, 3 figures

Scientific paper

10.1103/PhysRevA.84.023607

A major obstacle for the experimental realization of a supersolid phase with cold atomic gases in an optical lattice is the weakness of the nearest-neighbor interactions achievable via magnetic dipole-dipole interactions. In this letter, we show that using a large filling of atoms within each well the characteristic energy scales are strongly enhanced. Within this regime, the system is well described by the rotor model, and the qualitative behavior of the phase diagram derives from mean-field theory. We find a stable supersolid phase for realistic parameters with chromium atoms.

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