196 citations · 2.3k across the 104 of their papers we have counts for
11 papers · 1 filter
Control of automated guided vehicles without collision by quantum annealer and digital devices
Masayuki Ohzeki, Akira Miki, Masamichi J. Miyama +1
We formulate an optimization problem to control a large number of automated guided vehicles in a plant without collision. The formulation consists of binary variables. A quadratic…
Dynamics of Order Parameters of Non-stoquastic Hamiltonians in the Adaptive Quantum Monte Carlo Method
Shunta Arai, Masayuki Ohzeki, Kazuyuki Tanaka
We derive macroscopically deterministic flow equations with regard to the order parameters of the ferromagnetic -spin model with infinite-range interactions. The -spin model…
Steady state distributions of network of degenerate optical parametric oscillators in solving combinatorial optimization problems
Ryoji Miyazaki, Masayuki Ohzeki
We investigate network of degenerate optical parametric oscillators (DOPOs) as a model of the coherent Ising machine, an architecture for solving Ising problems. The network repres…
An exact solution of the partition function for mean-field quantum spin systems without the static approximation
Manaka Okuyama, Masayuki Ohzeki
Suzuki-Trotter decomposition is a well-known technique used to calculate the partition function of quantum spin systems, in which the imaginary-time dependence of the partition fun…
Optimization of neural networks via finite-value quantum fluctuations
Masayuki Ohzeki, Shuntaro Okada, Masayoshi Terabe +1
We numerically test an optimization method for deep neural networks (DNNs) using quantum fluctuations inspired by quantum annealing. For efficient optimization, our method utilizes…
A useful fundamental speed limit for the imaginary-time Schrodinger equation
Manaka Okuyama, Masayuki Ohzeki
The quantum speed limit (QSL), or the energy-time uncertainty relation, gives a fundamental speed limit for quantum dynamics. Recently, Kieu [arXiv:1702.00603] derived a new class…