Pair Superfluid and Supersolid of Correlated Hard-Core Bosons on a Triangular Lattice

Abstract

We have systematically studied the hard-core Bose-Hubbard model with correlated hopping on a triangular lattice using density-matrix renormalization group method. A rich ground state phase diagram is determined. In this phase diagram there is a supersolid phase and a pair superfluid phase due to the interplay between the ordinary frustrated boson hopping and an unusual correlated hopping. In particular, we find that the quantum phase transition between the supersolid phase and the pair superfluid phase is continuous.

5.5 pages, 5 figures

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Cited by in corpus (7)

• Recent progress on quantum simulations of non-standard Bose-Hubbard models
• Trimer superfluid and supersolid on two-dimensional optical lattices
• Quantum phases of hardcore bosons in two coupled chains: A density matrix renormalization group study
• The role of density-dependent magnon hopping and magnon-magnon repulsion in ferrimagnetic spin-(1/2, $S$) chains in a magnetic field
• Emergent Spin Supersolids in Frustrated Quantum Materials
• Dissipationless dynamics of spin supersolid states in a spin-1/2 triangular antiferromagnet with impurities
• Supersolid in Bose-Bose-Fermi Mixtures subjected to a Square Lattice