124 citations · 687 across the 19 of their papers we have counts for
19 papers
Staggered quantum phases of dipolar bosons at finite temperatures
Kuldeep Suthar, Kwai-Kong Ng
The extended Bose-Hubbard model with correlated tunneling exhibits staggered superfluid and supersolid quantum phases. We study finite-temperature phase transitions of quantum phas…
Berezinskii-Kosterlitz-Thouless transition from Neural Network Flows
Kwai-Kong Ng, Ching-Yu Huang, Feng-Li Lin
We adopt the neural network flow (NN flow) method to study the Berezinskii-Kosterlitz-Thouless (BKT) phase transitions of the 2-dimensional q-state clock model with . The N…
Frustration induced incommensurate solids in the extended Bose-Hubbard model
Kwai-Kong Ng, Min-Fong Yang
We study the extended Bose-Hubbard model with nearest-neighbor and next-nearest-neighbor repulsive interactions on a square lattice by using the quantum Monte Carlo metho…
Field-Induced Quantum Phases in Frustrated Spin-Dimer Model: A Sign-Problem-Free Quantum Monte Carlo Study
Kwai-Kong Ng, Min-Fong Yang
The magnetization process of a frustrated spin-1/2 spin-dimer model on a square lattice is investigated by means of a sign-problem-free quantum Monte Carlo algorithm developed rece…
Valence bond supersolid in a bilayer extended Bose Hubbard model
Kwai-Kong Ng
The hardcore extended Bose Hubbard model on a bilayer square lattice with attractive (repulsive) interplane (intraplane) interactions has been investigated numerically. Focusing on…
Quantum phase transitions in attractive extended Bose-Hubbard Model with three-body constraint
Yung-Chung Chen, Kwai-Kong Ng, Min-Fong Yang
The effect of nearest-neighbor repulsion on the ground-state phase diagrams of three-body constrained attractive Bose lattice gases is explored numerically. When the repulsion is t…