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arXiv 1105.4865quant-ph
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带量子边信息的不确定原理的相对熵推导

Relative entropy derivation of the uncertainty principle with quantum side information

Patrick J. Coles, Li Yu, Michael Zwolak

摘要:

我们给出了具有量子边信息的不确定原理的简单证明,如[Berta et al. Nature Physics 6,659(2010)]中所述,调用了相对熵的单调性。我们的证明表明,熵的不确定原理可以被看作是一个数据处理不等式,一个特殊的情况下,信息不能增加,由于时间的演变。这导致了一个系统的方法来寻找各种熵的不确定性关系的最小不确定性状态;有趣的是,这种状态与时间演化的可逆性密切相关。

英文摘要:

We give a simple proof of the uncertainty principle with quantum side information, as in [Berta et al. Nature Physics 6, 659 (2010)], invoking the monotonicity of the relative entropy. Our proof shows that the entropic uncertainty principle can be viewed as a data-processing inequality, a special case of the notion that information cannot increase due to evolution in time. This leads to a systematic method for finding the minimum uncertainty states of various entropic uncertainty relations; interestingly such states are intimately connected with the reversibility of time evolution.

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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