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arXiv 1801.01545physics.class-phquant-ph
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辐射力与Abraham-Minkowski问题

Radiation Forces and the Abraham-Minkowski Problem

Iver Brevik

摘要:

近年来,在辐射光学领域,已经出现了许多美丽的实验。我们的目的与这个迷你审查是突出辐射压力物理学的一些发展一般,然后集中在经典的亚伯拉罕-闵可夫斯基问题的重要性,提到的实验。这意味着,什么是连续物质中电磁动量密度的“正确”表达式。在我们看来,相对而言,我们经常看到作者过度解释他们关于动量问题的实验发现的重要性。这些实验中的大多数实际上根本无法区分这些能量-动量张量,因为它们可以很容易地用亚伯拉罕和闵可夫斯基常用的力表达式来描述。此外,我们强调了在将形式守恒原理应用于电介质中的辐射场时固有的模糊性,原因是物质中的电磁场只是一个子系统,它必须由要封闭的机械子系统补充。最后,我们提出了一些建议,宏观电动力学和Casimir效应之间的联系,表明有一个限制的大小的截止参数在QFT相关的表面张力在普通的流体力学。

英文摘要:

Recent years have witnessed a number of beautiful experiments in radiation optics. Our purpose with this mini-review is to highlight some developments of radiation pressure physics in general, and thereafter to focus on the importance of the mentioned experiments in regard to the classic Abraham-Minkowski problem. That means, what is the "correct" expression for electromagnetic momentum density in continuous matter. In our opinion one sees relatively often that authors over-interpret the importance of their experimental findings with respect to the momentum problem. Most of these experiments are actually unable to discriminate between these energy-momentum tensors at all, since they can be easily described in terms of force expressions that are common for Abraham and Minkowski. Moreover, we emphasize the inherent ambiguity in applying formal conservation principles to the radiation field in a dielectric, the reason being that the electromagnetic field in matter is only a subsystem which has to be supplemented by the mechanical subsystem to be closed. Finally, we make some suggestions regarding the connection between macroscopic electrodynamics and the Casimir effect, suggesting that there is a limit for the magnitudes of cutoff parameters in QFT related to surface tension in ordinary hydromechanics.

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