Supersolid Order of Frustrated Hard-Core Bosons in a Triangular Lattice System

Details Supersolid Order of Frustrated Hard-Core Bosons in a Triangular Lattice System Supersolid Order of Frustrated Hard-Core Bosons in a Triangular Lattice System

2008-10-06

arxiv.org/abs/0810.0900v1

Phys. Rev. B 79, 020409(R) (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.79.020409

We numerically demonstrate that a supersolid phase exists in a frustrated hard-core boson system on a triangular lattice over a wide range of interaction strength. In the infinite repulsion (Ising) limit, we establish a mapping to the same problem with unfrustrated hopping, which connects the supersolid to the known results in that case. The weak superfluidity can be destroyed or strongly enhanced by a next nearest neighbor hopping term, which provides valuable information for experimental realization of a supersolid phase on optical lattice.

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