265 citations · 3k across the 128 of their papers we have counts for
8 papers · 1 filter
Spin-Peierls transition of the first order in S=1 antiferromagnetic Heisenberg chains
Hiroaki Onishi, Seiji Miyashita
We investigate a one-dimensional S=1 antiferromagnetic Heisenberg model coupled to a lattice distortion by a quantum Monte Carlo method. Investigating the ground state energy of th…
Classical Correlation-Length Exponent in Non-Universal Quantum Phase Transition of Diluted Heisenberg Antiferromagnet
C. Yasuda, S. Todo, K. Harada +3
Critical behavior of the quantum phase transition of a site-diluted Heisenberg antiferromagnet on a square lattice is investigated by means of the quantum Monte Carlo simulation wi…
Number Partitioning on a Quantum Computer
H. De Raedt, K. Michielsen, K. De Raedt +1
We present an algorithm to compute the number of solutions of the (constrained) number partitioning problem. A concrete implementation of the algorithm on an Ising-type quantum com…
On the Problem of Programming Quantum Computers
Hans De Raedt, Anthony Hams, Kristel Michielsen +2
We study effects of the physical realization of quantum computers on their logical operation. Through simulation of physical models of quantum computer hardware, we analyse the dif…
Dynamical process for switching dynamics between metastable ordered magnetic state and nonmagnetic ground state in photoinduced phase transition
Masamichi Nishino, Seiji Miyashita
We propose a dynamical mechanism of the two-way switching between the metastable state and the stable state, which has been found in experiments of photoinduced reversible magnetiz…
Nonexponential Relaxation of Magnetization at the Resonant Tunneling Point under a Fluctuating Random Noise
Seiji Miyashita, Keiji Saito
Nonexponential relaxation of magnetization at resonant tunneling points of nanoscale molecular magnets is interpreted to be an effect of fluctuating random field around the applied…