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arXiv · 0712.1518

Phase diagram of anisotropic boson t-J model

M. Boninsegni·N. V. Prokof'ev
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Abstract

We have studied by Quantum Monte Carlo simulations the low temperature phase diagram of a mixture of isotopic, hard core bosons, described by the t-Jz-Jperp model, with Jperp=a Jz. Coexistence of superfluid hole-rich and insulating, antiferromagnetically ordered hole-free phases is observed at sufficiently low hole density, for any a < 1. A two-component checkerboard supersolid phase is not observed. The experimental relevance and possible broader implications of these findings are discussed.

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BibTeXRIS

M. Boninsegni, N. V. Prokof'ev. 2008-03-06. Phase diagram of anisotropic boson t-J model. https://doi.org/10.1103/physrevb.77.092502

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