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arXiv physics/0304022physics.opticsphysics.gen-ph
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具有零动量系的电磁脉冲

Electromagnetic pulses which have a zero momentum frame

John Lekner

摘要:

一组Ziolkowski族的精确解的波动方程表示脉冲传播的动量小于能量/c。通过计算总的电磁动量和能量,在特殊情况下明确地证明了这一点。由于动量与能量之比是一个小于1/c的常数,所以总动量为零的坐标系存在一个洛伦兹变换。在零动量框架中,场是会聚到聚焦区域或从聚焦区域发散的环形脉冲的场。

英文摘要:

One set of the Ziolkowski family of exact solutions of the wave equation are shown to represent pulses propagating with momentum smaller than energy/c. This is explicitly demonstrated for special cases by calculating the total electromagnetic momentum and energy. Since the ratio of momentum to energy is a constant smaller than 1/c, there exists a Lorentz transformation to a frame in which the total momentum is zero. In the zero-momentum frame the fields are those of an annular pulse converging onto or diverging from a focal region.

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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