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arXiv 1605.00514quant-ph
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量子信息的催化解耦

Catalytic Decoupling of Quantum Information

Christian Majenz, Mario Berta, Frédéric Dupuis, Renato Renner, Matthias Christandl

摘要:

解耦技术是量子信息理论中的一个基本工具,其应用范围从量子热力学到量子多体物理学,再到黑洞辐射的研究。在这项工作中,我们介绍的概念,催化解耦,即解耦的存在下,一个不相关的辅助系统。这消除了对解耦的标准概念的限制,这对于无结构资源变得重要,并在最大互信息方面产生了严格的表征。催化退耦自然地统一了各种任务,如相关性的擦除和量子态合并,并导致了退耦的资源理论。

英文摘要:

The decoupling technique is a fundamental tool in quantum information theory with applications ranging from quantum thermodynamics to quantum many body physics to the study of black hole radiation. In this work we introduce the notion of catalytic decoupling, that is, decoupling in the presence of an uncorrelated ancilla system. This removes a restriction on the standard notion of decoupling, which becomes important for structureless resources, and yields a tight characterization in terms of the max-mutual information. Catalytic decoupling naturally unifies various tasks like the erasure of correlations and quantum state merging, and leads to a resource theory of decoupling.

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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