Triangular lattice quantum dimer model with variable dimer density

Quantum dimer models are known to host topological quantum spin liquid phases, and it has recently become possible to simulate such models with Rydberg atoms trapped in arrays of optical tweezers. Here, we present large-scale quantum Monte Carlo simulation results on an extension of the triangular lattice quantum dimer model with terms in the Hamiltonian annihilating and creating single dimers. We find distinct odd and even Z(2) spin liquids, along with several phases with no topological order: a staggered crystal, a nematic phase, and a trivial symmetric phase with no obvious broken symmetry. We also present dynamic spectra of the phases, and note implications for experiments on Rydberg atoms.

Automated summary

In this study, a large-scale quantum Monte Carlo simulation is performed on an extended triangular lattice quantum dimer model with terms in the Hamiltonian that annihilate and create single dimers. The results show the existence of distinct odd and even Z(2) spin liquids, along with several phases with no topological order. Additionally, dynamic spectra of these phases are presented, with implications for experiments on Rydberg atoms.