Litcius/Paper detail

Triangular lattice quantum dimer model with variable dimer density

Zheng Yan, Rhine Samajdar, Yan-Cheng Wang, Subir Sachdev, Zi Yang Meng

2022Nature Communications52 citationsDOIOpen Access PDF

Abstract

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 [Formula: see text] 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.

Topics & Concepts

PhysicsDimerHamiltonian (control theory)Hexagonal latticeQuantum Monte CarloLattice (music)QuantumQuantum phasesRydberg atomRydberg formulaQuantum mechanicsQuantum simulatorTopological degeneracyTopological orderTopology (electrical circuits)Condensed matter physicsQuantum computerQuantum phase transitionMonte Carlo methodSymmetry protected topological orderMathematicsAntiferromagnetismNuclear magnetic resonanceAcousticsIonizationIonMathematical optimizationCombinatoricsStatisticsQuantum many-body systemsCold Atom Physics and Bose-Einstein CondensatesAdvanced Condensed Matter Physics