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

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 نشر من قبل Zheng-Yu Weng
 تاريخ النشر 2008
  مجال البحث فيزياء
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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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