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arXiv quant-ph/9812045quant-ph
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随机振子的相干性质

Coherence properties of the stochastic oscillator

Martti Havukainen, Stig Stenholm

摘要:

讨论了一个具有随机频率的振子作为评价物理系统的量子相干性的模型。它被发现,跳跃统计的选择必须小心考虑,如果要避免非物理后果。我们研究这样一个模型,评估它所导致的阻尼,退相干率和相关性,它导致的状态和渐近长时间的属性。讨论了初始态的选择及其对关联时间演化的影响。

英文摘要:

An oscillator with stochastic frequency is discussed as a model for evaluating the quantum coherence properties of a physical system. It is found that the choice of jump statistics has to be considered with care if unphysical consequences are to be avoided. We investigate one such model, evaluate the damping it causes, the decoherence rate and the correlations it results in and the properties of the state for asymptotically long times. Also the choice of initial state is discussed and its effect on the time evolution of the correlations.

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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