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arXiv 1302.3011quant-ph
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纯量子信息驱动的热机

Heat engine driven by purely quantum information

Jung Jun Park, Kang-Hwan Kim, Takahiro Sagawa, Sang Wook Kim

摘要:

本文的核心问题是能否利用纯量子力学信息从热机中提取功。如果答案是肯定的,它的数学公式是什么?首先,通过使用一个二分记忆,我们表明,从热机提取的工作是有界的,不仅由自由能的变化和熵的变化的总和的单个存储器,但也由存储器内包含的量子互信息的变化。然后我们发现,该引擎可以由纯粹的量子信息驱动,表示为所谓的量子不和谐,形成量子互信息的一部分。为了证实这一点,作为一个物理的例子,我们提出了Szilard引擎包含一个双原子分子与半渗透壁。

英文摘要:

The key question of this paper is whether work can be extracted from a heat engine by using purely quantum mechanical information. If the answer is yes, what is its mathematical formula? First, by using a bipartite memory we show that the work extractable from a heat engine is bounded not only by the free energy change and the sum of the entropy change of an individual memory but also by the change of quantum mutual information contained inside the memory. We then find that the engine can be driven by purely quantum information, expressed as the so-called quantum discord, forming a part of the quantum mutual information. To confirm it, as a physical example we present the Szilard engine containing a diatomic molecule with a semi-permeable wall.

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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