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arXiv 1312.1600math-phcond-mat.stat-mechmath.MPmath.PRquant-ph
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开量子布朗运动

The Open Quantum Brownian Motion

Michel Bauer, Denis Bernard, Antoine Tilloy

摘要:

利用随机游动上的量子并行性作为原始种子,我们引入了新的量子随机过程,即开量子布朗运动。他们描述了量子步行者的行为-内部自由度充当随机陀螺仪-与一系列探针相互作用。这些过程也可以被看作是开放量子随机游动的标度极限,我们沿着三条不同的路线发展这种方法:量子轨迹,量子动力学映射,量子随机微分方程。我们还提出了一个研究的最简单的情况下,与一个两级系统作为内部陀螺仪,说明在这些过程中的工作弹道和扩散行为之间的相互作用。

英文摘要:

Using quantum parallelism on random walks as original seed, we introduce new quantum stochastic processes, the open quantum Brownian motions. They describe the behaviors of quantum walkers -- with internal degrees of freedom which serve as random gyroscopes -- interacting with series of probes. These processes may also be viewed as the scaling limit of open quantum random walks and we develop this approach along three different lines: quantum trajectory, quantum dynamical map, and quantum stochastic differential equation. We also present a study of the simplest case, with a two level system as internal gyroscope, illustrating the interplay between ballistic and diffusive behaviors at work in these processes.

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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