Saldanha Pablo L
Departamento de Física, Universidade Federal de Minas Gerais, Caixa Postal 702, 30123-970, Belo Horizonte, Minas Gerais, Brazil.
Opt Express. 2010 Feb 1;18(3):2258-68. doi: 10.1364/OE.18.002258.
It is proposed a natural and consistent division of the momentum of electromagnetic waves in linear, non-dispersive and non-absorptive dielectric and magnetic media into material and electromagnetic parts. The material part is calculated using directly the Lorentz force law and the electromagnetic momentum density has the form epsilon(0)E x B, without an explicit dependence on the properties of the media. The consistency of the treatment is verified through the obtention of a correct momentum balance equation in many examples and showing the compatibility of the division with the Einstein's theory of relativity by the use of a gedanken experiment. An experimental prediction for the radiation pressure on mirrors immersed in linear dielectric and magnetic media is also made.
提出了一种将线性、非色散和非吸收性电介质及磁介质中电磁波的动量自然且一致地划分为物质部分和电磁部分的方法。物质部分直接利用洛伦兹力定律计算，电磁动量密度具有(\epsilon(0)E\times B)的形式，且不明确依赖于介质的特性。通过在许多例子中得到正确的动量平衡方程，并利用一个思想实验表明这种划分与爱因斯坦相对论的兼容性，验证了该处理方法的一致性。还对浸没在线性电介质和磁介质中的镜子上的辐射压力做出了实验预测。
