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arXiv 0704.3906quant-phcond-mat.stat-mech
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量子系统中的面积定律:互信息和相关性

Area laws in quantum systems: mutual information and correlations

M. M. Wolf, F. Verstraete, M. B. Hastings, J. I. Cirac

摘要:

全息原理指出,在基本水平上,一个区域的信息内容应该取决于它的表面积,而不是它的体积。这个反直觉的想法源于黑洞熵的非广延性质,它是寻找普朗克尺度物理学基本定律的指导原则。在本文中,我们表明,一个类似的现象出现从经典和量子物理学的既定法律:信息包含在一个系统的一部分,在热平衡服从面积定律。虽然单位面积的最大信息量在经典意义上只取决于微观自由度的数量,但在量子系统中,它可能会随着温度的倒数而发散。建立了面积定律和关联之间的严格关系,揭示了一大类超越平衡系统的量子多体态的显式行为。

英文摘要:

The holographic principle states that on a fundamental level the information content of a region should depend on its surface area rather than on its volume. This counterintuitive idea which has its roots in the nonextensive nature of black-hole entropy serves as a guiding principle in the search for the fundamental laws of Planck-scale physics. In this paper we show that a similar phenomenon emerges from the established laws of classical and quantum physics: the information contained in part of a system in thermal equilibrium obeys an area law. While the maximal information per unit area depends classically only on the number of microscopic degrees of freedom, it may diverge as the inverse temperature in quantum systems. A rigorous relation between area laws and correlations is established and their explicit behavior is revealed for a large class of quantum many-body states beyond equilibrium systems.

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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