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arXiv quant-ph/9809007quant-phcond-mat.mes-hall
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热辐射长程相关

Long-range correlation of thermal radiation

M. Patra, C. W. J. Beenakker

摘要:

本文提出了一个一般理论,用以研究处于热平衡的随机介质辐射强度的空间相关性。我们发现,一个非零的相关性持续的距离大的热辐射的横向相干长度相比。这种长程相关在理想黑体的极限下消失。我们分析了两种类型的系统(一个无序的波导和一个光学腔与混沌散射),它应该是可观察的。

英文摘要:

A general theory is presented for the spatial correlations in the intensity of the radiation emitted by a random medium in thermal equilibrium. We find that a non-zero correlation persists over distances large compared to the transverse coherence length of the thermal radiation. This long-range correlation vanishes in the limit of an ideal black body. We analyze two types of systems (a disordered waveguide and an optical cavity with chaotic scattering) where it should be observable.

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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