15 citations · 34 across the 10 of their papers we have counts for
4 papers · 1 filter
Reduction of the energy-gap scaling by coherent catalysis in models of quantum annealing
Yang Wei Koh, Hidetoshi Nishimori
Non-stoquastic drivers are known to improve the performance of quantum annealing by reducing first-order phase transitions into second-order ones in several mean-field-type model s…
Non-static effects in ordered and disordered quantum spin systems I: theoretical formulation, energy gap and non-extensive terms of ground-state energy of the ferromagnetic Ising model in a transverse field
Yang Wei Koh
In the path integral formulation of the partition function of quantum spin models, most current treatments employ the so-called static approximation to simplify the process of summ…
Dynamical traps in Wang-Landau sampling of continuous systems: Mechanism and solution
Yang Wei Koh, Adelene Y. L. Sim, Hwee Kuan Lee
We study the mechanism behind dynamical trappings experienced during Wang-Landau sampling of continuous systems reported by several authors. Trapping is caused by the random walker…
Dynamically Optimized Wang-Landau Sampling with Adaptive Trial Moves and Modification Factors
Yang Wei Koh, Hwee Kuan Lee, Yutaka Okabe
The density of states of continuous models is known to span many orders of magnitudes at different energies due to the small volume of phase space near the ground state. Consequent…