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arXiv quant-ph/0609085quant-ph
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发展 Deutsch-Haydon 量子力学方法

Developing the Deutsch-Hayden approach to quantum mechanics

Dominic Horsman, Vlatko Vedral

AI总结:

本文完善 Deutsch-Hayden 量子力学形式体系,证明信息流描述的唯一性并纳入测量与混合态,进而用其分析纠缠交换,排除非局域效应和超光速信号。

摘要:

Deutsch 和 Hayden 提出的形式体系是一种有用的工具,可将量子力学明确描述为局域且幺正的,从而把量子信息理论描述为研究系统之间信息“流动”的理论。本文证明这些关于流动的物理描述具有唯一性,并进一步发展该方法,使其包含测量相互作用和混合态。随后,我们在该方法框架内分析纠缠交换,表明它实际上并不包含非局域效应或某种形式的超光速信号传递。

英文摘要:

The formalism of Deutsch and Hayden is a useful tool for describing quantum mechanics explicitly as local and unitary, and therefore quantum information theory as concerning a "flow" of information between systems. In this paper we show that these physical descriptions of flow are unique, and develop the approach further to include the measurement interaction and mixed states. We then give an analysis of entanglement swapping in this approach, showing that it does not in fact contain non-local effects or some form of superluminal signalling.

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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