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arXiv physics/0012032physics.gen-ph
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自由空间微波传播超光速现象的原因解释

Causal explanation for observed superluminal behavior of microwave propagation in free space

W. A. Rodrigues, Dario S. Thober, Ademir L. Xavier

摘要:

在本文中,我们对Mugnai及其合作者的一项实验进行了理论分析,该实验在微波传播中观察到了超光速行为。我们认为,所观察到的可以很好地近似于超光速X波的运动。实验结果还可用所谓的干涉效应来解释,即来自反射镜环形区域相对点的信号对会聚,并在相交轴上以超光速运动形成干涉峰。澄清了对这种电磁波在真空中传播的一些误解。

英文摘要:

In this paper we present a theoretical analysis of an experiment by Mugnai and collaborators where superluminal behavior was observed in the propagation of microwaves. We suggest that what was observed can be well approximated by the motion of a superluminal X wave. Furthermore the experimental results are also explained by the so called scissor effect which occurs with the convergence of pairs of signals coming from opposite points of an annular region of the mirror and forming an interference peak on the intersection axis traveling at superluminal speed. We clarify some misunderstandings concerning this kind of electromagnetic wave propagation in vacuum.

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