>>13705084Consider energy conservation, a photon can decay into many low energy photons and it doesnt violate energy conservation.
Momentum conservation is also not violated since its proportional to energy.
One thing that worries me was angular momentum conservation, since its quantized it has only two values (+-h bar). This leads me to believe that the decay has to happen to an odd number of particles, like say 3 photons, or 5 or 7 photons, with a pairs of photons with opposing angular momentum and a single photon carrying the same momentum as the original.
In statistical physics it is given that when you start with any distribution of photos it will simply evolve to a blackbody thermalized distribution. Like if you fire a gamma ray inside a black box, it will "decay" into millions of low energy photons with the same total energy and a characteristic spectrum.