117 citations · 137 across the 2 of their papers we have counts for
4 papers
Thermal valence-bond-solid transition of quantum spins in two dimensions
Songbo Jin, Anders W. Sandvik
We study the S=1/2 Heisenberg (J) model on the two-dimensional square lattice in the presence of additional higher-order spin interactions (Q) which lead to a valence-bond-solid (V…
Phase transitions in the frustrated Ising model on the square lattice
Songbo Jin, Arnab Sen, Wenan Guo +1
We consider the thermal phase transition from a paramagnetic to stripe-antiferromagnetic phase in the frustrated two-dimensional square-lattice Ising model with competing interacti…
Ashkin-Teller criticality and pseudo first-order behavior in a frustrated Ising model on the square lattice
Songbo Jin, Arnab Sen, Anders W. Sandvik
We study the challenging thermal phase transition to stripe order in the frustrated square-lattice Ising model with couplings J1<0 (nearest-neighbor, ferromagnetic) and J2>0 (secon…
Universal Neel Temperature in Three-Dimensional Quantum Antiferromagnets
Songbo Jin, Anders W. Sandvik
We study three-dimensional dimerized S=1/2 Heisenberg antiferromagnets, using quantum Monte Carlo simulations of systems with three different dimerization patterns. We propose a wa…