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arXiv 1503.02127quant-phcond-mat.stat-mech
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经典非平衡动力学与量子退火的关系

Relation of classical non-equilibrium dynamics and quantum annealing

Hidetosni Nishimori

摘要:

伊辛模型的非平衡态动力学是一个经典的随机过程,而量子力学没有经典意义上的随机因素。然而,众所周知,这两个进程之间存在着密切的正式关系。我们重新制定这种关系,并使用它来比较模拟退火,使用经典的随机过程和量子退火来解决组合优化问题的效率。结果表明,经典动力学可以有效地模拟量子力学过程,而反过来不一定是真的。这可能意味着量子退火可以被认为是比模拟退火更强大的优化问题的工具。

英文摘要:

Non-equilibrium dynamics of the Ising model is a classical stochastic process whereas quantum mechanics has no stochastic elements in the classical sense. Nevertheless, it has been known that there exists a close formal relationship between these two processes. We reformulate this relationship and use it to compare the efficiency of simulated annealing that uses classical stochastic processes and quantum annealing to solve combinatorial optimization problems. It is shown that classical dynamics can be efficiently simulated by quantum-mechanical processes whereas the converse is not necessarily true. This may imply that quantum annealing may be regarded as a more powerful tool than simulated annealing for optimization problems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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