Quantum Spin Liquids in XY models with Ring Exchange

Quantum Monte Carlo simulations of spin 1/2 XY models with ring exchange

Quantum spin liquid in two-dimensional Kagome lattice spin-1/2 XY model with 4-site ring exchange

Multi-spin exchange model for a quantum spin liquid on the honeycomb lattice

Magnetic to valence-bond-solid transition in an S=1/2 XY model with ring-exchange

Chiral spin liquid in the frustrated XY model on the honeycomb lattice

Introduction to Quantum Spin Liquids