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arXiv 0708.4289physics.gen-ph
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两光子系统在不同惯性参考系中的静止质量:0+0=0和0+0>0

The rest mass of a system of two photons in different inertial reference frames: 0+0=0 and 0+0>0

Berhard Rothenstein, Doru Păunescu, Ştefan Popescu

摘要:

我们证明了由两个光子组成的系统的静止质量是一个相对论不变量,在相对运动的所有惯性参考系中具有相同的量值。假设两个光子的频率相等,系统的静止质量大小取决于两个光子动量所成的角度。当从两个惯性参考系检测到的光子的行为示出了使用相对论图,该相对论图以真实值显示为了表征光子的动力学性质而引入的物理量(标量和矢量)。我们认为,在那些禁止相对论质量概念的人和那些认为使用相对论质量是无害的人之间的讨论中,应该考虑所获得的结果。

英文摘要:

We show that the rest mass of a system consisting of two photons is a relativistic invariant having the same magnitude in all inertial reference frames in relative motion. A scenario which starts with two photons where theirs frequencies are equal to each other the magnitude of the rest mass of the system depends on the angle made by the momentums of the two photons. The behavior of the photons when detected from two inertial reference frames is illustrated using a relativistic diagram which displays in true values the physical quantities (scalar and vector) introduced in order to characterize the dynamical properties of the photon. We consider that the obtained results should be taken in the discussions, some time fierce, between those who ban the concept of relativistic mass and those who consider that its use is harmless.

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