Three-body interacting dipolar bosons and the fate of lattice supersolidity
arXiv:1611.03049 · doi:10.1103/PhysRevA.94.063610
Abstract
We investigate a system of dipolar bosons in an optical lattice with local two and three-body interactions. Using the mean-field theory approach, we obtain the ground state phase diagram of the extended Bose-Hubbard (EBH) model with both repulsive and attractive three-body interac- tions. We show that the additional three-body on-site interaction has strong effects on the phase diagram especially on the supersolid phase. Positive values of the three-body interaction lead to the enhancement of the gapped phases at densities larger than unity by reducing the supersolid region. However, a small attractive three-body interaction enhances the supersolid phase.
arXiv comment6 pages, 3 figures
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- Lattice-enabled detection of spin-dependent three-body interactions