Phase separation and flux quantization in the doped quantum dimer model on the square and triangular lattices

Abstract

The doped two-dimensional quantum dimer model is investigated by numerical techniques on the square and triangular lattices, with significantly different results. On the square lattice, at small enough doping, there is always a phase separation between an insulating valence-bond solid and a uniform superfluid phase, whereas on the triangular lattice, doping leads directly to a uniform superfluid in a large portion of the RVB phase. Under an applied Aharonov-Bohm flux, the superfluid exhibits quantization in terms of half-flux quanta, consistent with Q=2e elementary charge quanta in transport properties.

4 pages, 6 figures

References in corpus (13)

• Ising models of quantum frustration
• Evidence for a superfluid density in t--J ladders
• Phase diagram of the one-dimensional extended Hubbard model with attractive and/or repulsive interactions at quarter filling
• The plaquette phase of the square lattice quantum dimer model
• Cuprates as doped U(1) spin liquids
• Identification of an RVB liquid phase in a quantum dimer model with competing kinetic terms
• Dynamics of the quantum dimer model on the triangular lattice: Soft modes and local resonating valence-bond correlations
• Continuous-time Diffusion Monte Carlo and the Quantum Dimer Model
• The Luther-Emery liquid: Spin gap and anomalous flux period
• Zero-temperature Kosterlitz-Thouless transition in a two-dimensional quantum system
• Absence of single particle Bose-Einstein condensation at low densities for bosons with correlated-hopping
• Doping quantum dimer models on the square lattice
• Effective quantum dimer model for trimerized kagome antiferromagnet

Cited by in corpus (9)

• Prediction of Toric Code Topological Order from Rydberg Blockade
• A Generalized Quantum Dimer Model Applied to the Frustrated Heisenberg Model on the Square Lattice: Emergence of a Mixed Columnar-Plaquette Phase
• Finite-Volume Energy Spectrum, Fractionalized Strings, and Low-Energy Effective Field Theory for the Quantum Dimer Model on the Square Lattice
• Magnetization plateaus of an easy-axis Kagomé antiferromagnet with extended interactions
• Properties of holons in the Quantum Dimer Model
• Statistical transmutation in doped quantum dimer models
• Statistics of holes and nature of superfluid phases in Quantum dimer models
• Magnetic field-induced transition in a quantum magnet described by the Quantum Dimer Model
• Single hole and vortex excitations in the doped Rokhsar-Kivelson quantum dimer model on the triangular lattice