Supersolid order of frustrated hard-core bosons in a triangular lattice system
Supersolid order of frustrated hard-core bosons in a triangular lattice system
复制标题
三角晶格系统中受挫硬核玻色子的超固序
DOI：
10.1103/physrevb.79.020409
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发表时间：
2009-01-01
影响因子：
3.7
通讯作者：
Balents, L.
中科院分区：
文献类型：
--
作者：
Jiang, H. C.;Weng, M. Q.;Balents, L.
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. A phase diagram for the frustrated anisotropic Heisenberg model on triangular lattice is also established.
