Solids and supersolids of three-body interacting polar molecules in an optical lattice

Details Solids and supersolids of three-body interacting polar molecules in an optical lattice Solids and supersolids of three-body interacting polar molecules in an optical lattice

2008-05-09

arxiv.org/abs/0805.1408v2

Phys. Rev. Lett. 101, 150405 (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

4+ pages, 4 figures, published version

Scientific paper

10.1103/PhysRevLett.101.150405

We study the physics of cold polar molecules loaded into an optical lattice in the regime of strong three-body interactions, as put forward recently by B\"uchler [Nature Phys. 3, 726 (2007)]. To this end quantum Monte Carlo simulations, exact diagonalization and a semiclassical approach are used to explore hardcore bosons on the two-dimensional square lattice which interact solely by long ranged three-body terms. The resulting phase diagram shows a sequence of solid and supersolid phases. Our findings are directly relevant for future experimental implementations and open a new route towards the discovery of a lattice supersolid phase in experiment.

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