Null-space propagation

For the time being, let us consider the conventional view wave-particle duality. Then, propogation of photon is the same as propagation of electromagnetic field E, B. In free space the charge density is null everywhere, except possibly at the source. The photon is chargeless hence, if Maxwell s equations are applicable to a photon in vacuum, pe = 0 everywhere. This leads to some contradiction. 

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