Phase diagram of anisotropic boson t-J model

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.

arXiv commentReplaced with published version

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• Excitonic Instability at the Spin-State Transition in the Two-Band Hubbard Model
• Antiferromagnetic bosonic $t$-$J$ models and their quantum simulation in tweezer arrays
• Finite-temperature phase diagram of two-component bosons in a cubic optical lattice: Three-dimensional t-J model of hard-core bosons
• Magnetic order, Bose-Einstein condensation, and superfluidity in a bosonic t-J model of CP^1 spinons and doped Higgs holons
• Effective field theories for two-component repulsive bosons on lattice and their phase diagrams
• Quantum crystal growing: Adiabatic preparation of a bosonic antiferromagnet in the presence of a parabolic inhomogeneity
• Random-field-induced order in bosonic t-J model
• Phase Diagram of Mixed-Dimensional Anisotropic t-J-Models
• Repulsive Fermions in Optical Lattices: Phase separation versus Coexistence of Antiferromagnetism and d-Superfluidity
• Emergence of Topological Fermi Liquid from a Strongly Correlated Bosonic System in Optical Superlattices