137 citations · 286 across the 9 of their papers we have counts for
3 papers · 1 filter
Mirror-symmetry-protected dynamical quantum phase transitions in topological crystalline insulators
Ryo Okugawa, Hiroki Oshiyama, Masayuki Ohzeki
Dynamical quantum phase transitions (DQPTs) are topologically characterized in quantum quench dynamics in topological systems. In this paper, we study Loschmidt amplitudes and DQPT…
Benchmark of quantum-inspired heuristic solvers for quadratic unconstrained binary optimization
Hiroki Oshiyama, Masayuki Ohzeki
Recently, inspired by quantum annealing, many solvers specialized for unconstrained binary quadratic programming problems have been developed. For further improvement and applicati…
Classical simulation and theory of quantum annealing in a thermal environment
Hiroki Oshiyama, Sei Suzuki, Naokazu Shibata
We study quantum annealing in the quantum Ising model coupled to a thermal environment. When the speed of quantum annealing is sufficiently slow, the system evolves following the i…