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arXiv 2012.04574physics.optics
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持续媒体和亚伯拉罕-闵可夫斯基辩论中的隐藏动力

Hidden momentum in continuous media and the Abraham-Minkowski debate

Raul Corrêa, Pablo L. Saldanha

摘要:

我们进行了详细的研究之间的联系隐藏的动量和亚伯拉罕-闵可夫斯基辩论的电磁动量密度在物质介质。本文介绍了前人在这方面的研究成果[P.L. Saldanha和J.S. Oliveira Filho,Phys. Rev. A 95,043804(2017)]扩展到连续介质极限,其中出现了一些微妙之处。我们考虑一个极化和磁化的连续介质与施加的电场和磁场的静态场,其中介质的极化可以是由于电荷密度或一个假设的磁流密度和介质的磁化可以是由于一个电流密度或一个假设的磁荷密度。每种模型导致系统材料隐藏动量和介质中电磁动量密度的不同表达式。我们表明,引用的参考文献的主要结果是持续的连续介质限制:亚伯拉罕动量与极化是由于电荷而磁化是由于磁荷的介质模型兼容,闵可夫斯基动量与极化是由于磁流而磁化是由于电流的模型兼容,并且表达式$\varepsilon_0\mathbf{E}\times\mathbf{B}$与极化是由于电荷而磁化是由于电流的模型兼容,该模型是自然模型。用均匀极化磁化球的例子说明了这些结果。

英文摘要:

We perform a detailed study of the connection between hidden momentum and the Abraham-Minkowski debate about the electromagnetic momentum density in material media. The results of a previous work on the subject [P. L. Saldanha and J. S. Oliveira Filho, Phys. Rev. A 95, 043804 (2017)] are extended to the continuous medium limit, where some subtleties arise. We consider a polarized and magnetized continuous medium with applied electric and magnetic static fields, where the medium polarization can be due to either an electric charge density or a hypothetical magnetic current density and the medium magnetization can be due to either an electric current density or a hypothetical magnetic charge density. Each model leads to a different expression for the system material hidden momentum and for the electromagnetic momentum density in the medium. We show that the main results of the cited reference are sustained in the continuous medium limit: Abraham momentum is compatible with a model for the medium where the polarization is due to electric charges and the magnetization is due to magnetic charges, Minkowski momentum is compatible to a model where the polarization is due to magnetic currents and the magnetization is due to electric currents, and the expression $\varepsilon_0\mathbf{E}\times\mathbf{B}$ is compatible with a model where the polarization is due to electric charges and the magnetization is due to electric currents, which is the natural model. These results are illustrated with the example of a uniformly polarized and magnetized sphere.

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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