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arXiv quant-ph/0312149quant-ph
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量子演化的概率论和信息论解释

A probabilistic and information theoretic interpretation of quantum evolutions

J. Oppenheim, B. Reznik

摘要:

在量子力学中,状态的测量结果具有概率解释,而状态的演化被确定性地处理。在这里,我们表明,人们也可以把进化作为概率的性质,人们可以衡量'单一'发生。同样,我们可以通过定义一个完全正映射的熵来给出演化的信息论解释。这个熵给出了进化的信息内容可以被压缩的速率。人们不能压缩这些信息,仍然有一个未知的状态的演变行为,但我们证明了一个一般的计划,这样做的概率。这允许将超密集编码推广到量子信息的发送。人们也可以定义幺正的“相互作用-纠缠”,并集中这种纠缠。

英文摘要:

In quantum mechanics, outcomes of measurements on a state have a probabilistic interpretation while the evolution of the state is treated deterministically. Here we show that one can also treat the evolution as being probabilistic in nature and one can measure `which unitary' happened. Likewise, one can give an information-theoretic interpretation to evolutions by defining the entropy of a completely positive map. This entropy gives the rate at which the informational content of the evolution can be compressed. One cannot compress this information and still have the evolution act on an unknown state, but we demonstrate a general scheme to do so probabilistically. This allows one to generalize super-dense coding to the sending of quantum information. One can also define the ``interaction-entanglement'' of a unitary, and concentrate this entanglement.

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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