Search Results for author: Naokazu Shibata

Found 2 papers, 0 papers with code

Classical simulation and theory of quantum annealing in a thermal environment

no code implementations4 Feb 2021 Hiroki Oshiyama, Sei Suzuki, Naokazu Shibata

We study quantum annealing in the quantum Ising model coupled to a thermal environment.

Quantum Physics

Probing the Universality of Topological Defect Formation in a Quantum Annealer: Kibble-Zurek Mechanism and Beyond

no code implementations31 Jan 2020 Yuki Bando, Yuki Susa, Hiroki Oshiyama, Naokazu Shibata, Masayuki Ohzeki, Fernando Javier Gómez-Ruiz, Daniel A. Lidar, Adolfo del Campo, Sei Suzuki, Hidetoshi Nishimori

We find that the degree of agreement with the experimental data from the D-Wave devices is better for the KZM, a quantum theory, than for the classical spin-vector Monte Carlo model, thus favoring a quantum description of the device.

Quantum Physics Statistical Mechanics

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