Phase diagram of hard core bosons with anisotropic interactions
arXiv:2204.08648 · doi:10.1007/s10909-022-02793-x
Abstract
The phase diagram of lattice hard core bosons with nearest-neighbor interactions allowed to vary independently, from repulsive to attractive, along different crystallographic directions, is studied by Quantum Monte Carlo simulations. We observe a superfluid phase, as well as two crystalline phases at half filling, either checkerboard or striped. Just like in the case of isotropic interactions, no supersolid phase is observed.
arXiv commentSix pages, four figures in color
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