3 papers
cond-mat.str-el2021
Emergent O(4) symmetry at the phase transition from plaquette-singlet to antiferromagnetic order in quasi-two-dimensional quantum magnets
Guangyu Sun, Nvsen Ma, Bowen Zhao +2
Recent experiments [J. Guo et al., Phys. Rev. Lett.124,206602 (2020)] on thermodynamic properties of the frustrated layered quantum magnet SrCu(BO) -- the Shastry-Suthe…
cond-mat.str-el2020
Tunable deconfined quantum criticality and interplay of different valence-bond solid phases
Bowen Zhao, Jun Takahashi, Anders W. Sandvik
We use quantum Monte Carlo simulations to study a quantum spin model with competing multi-spin interactions. We find a quantum phase transition between a columnar valence-b…
cond-mat.str-el2020
Consistent scaling exponents at the deconfined quantum-critical point
Anders W. Sandvik, Bowen Zhao
We report a quantum Monte Carlo study of the phase transition between antiferromagnetic and valence-bond solid ground states in the square-lattice - model. The critic…