Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2012-02-27
Physics
Condensed Matter
Disordered Systems and Neural Networks
21 pages, 10 figures, revised version will appear in proceedings of Kinki University Quantum Computing Series: "Symposium on I
Scientific paper
Quantum annealing method has been widely attracted attention in statistical physics and information science since it is expected to be a powerful method to obtain the best solution of optimization problem as well as simulated annealing. The quantum annealing method was incubated in quantum statistical physics. This is an alternative method of the simulated annealing which is well-adopted for many optimization problems. In the simulated annealing, we obtain a solution of optimization problem by decreasing temperature (thermal fluctuation) gradually. In the quantum annealing, in contrast, we decrease quantum field (quantum fluctuation) gradually and obtain a solution. In this paper we review how to implement quantum annealing and show some quantum fluctuation effects in frustrated Ising spin systems.
Tamura Ryo
Tanaka Shu
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