Based on Proca equations, some far-reaching implications from massive photon, such as the frequency dependence of the speed of light, the deviations of static electromagnetic field(additional Yukawa potential), the longitudinal electromagnetic radiation.

• 根据Proca 方程组,具有非零质量的光子将导致很多新的现象:如光速将与频率有关、静电场将发生偏差(附加了汤川势)、电磁波的纵向分量将不为零。