7 papers
Ground state energy density, susceptibility, and Wilson ratio of a two-dimensional disordered quantum spin system
J. -H. Peng, D. -R. Tan, F. -J. Jiang
A two-dimensional (2D) spin-1/2 antiferromagnetic Heisenberg model with a specific kind of quenched disorder is investigated, using the first principles nonperturbative quantum Mon…
Machine learning phases and criticalities without using real data for training
D. -R. Tan, F. -J. Jiang
We study the phase transitions of three-dimensional (3D) classical O(3) model and the two-dimensional (2D) classical XY model, as well as both the quantum phase transitions of 2D a…
A Neural Networks study of the phase transitions of Potts model
D. -R. Tan, C. -D. Li, W. -P. Zhu +1
Using the techniques of Neural Networks (NN), we study the three-dimensional (3D) 5-state ferromagnetic Potts model on the cubic lattice as well as the two-dimensional (2D) 3-state…
Validity of Harris criterion for two-dimensional quantum spin systems with quenched disorder
Jhao-Hong Peng, L. -W. Huang, D. -R. Tan +1
Inspired by the recent results regarding whether the Harris criterion is valid for quantum spin systems, we have simulated a two-dimensional spin-1/2 Heisenberg model on the square…
Universal scaling of three-dimensional dimerized quantum antiferromagnets on bipartite lattices
Deng-Ruei Tan, Fu-Jiun Jiang
Using the first principles quantum Monte Carlo (QMC) calculations, we investigate the previously established universal scaling between the Néel temperature and the staggered…
Universal quantum criticality at finite temperature for two-dimensional disordered and clean dimerized spin- antiferromagnets
D. -R. Tan, F. -J. Jiang
The quantum critical regime (QCR) of a two-dimensional (2D) disordered and a 2D clean dimerized spin- Heisenberg models are studied using the first principles nonpertu…