Gamma rays, despite their higher energy and frequency compared to visible light, travel at the speed of light (c) according to established physics. Theories such as loop quantum gravity and Doubly Special Relativity (DSR) suggest that under certain conditions, gamma rays could potentially exceed this speed, particularly in the early universe. However, these theories remain speculative and controversial, as they contradict Einstein's theory of relativity. The discussion highlights the ongoing debate in the field of theoretical physics regarding the behavior of high-energy photons.
PREREQUISITESThe discussion is beneficial for physicists, cosmologists, and students of theoretical physics interested in the properties of gamma rays and the implications of advanced theories in modern physics.
This works by the fact DSR allows the energy of the photons themselves to in fact alter the speed of the photon. Blue light, for example, would travel at a slightly faster speed than red light. This difference is of course minute. Maguijo reasons that in the early universe, where photons had much higher energies than today, their velocities may in fact be significantly higher. Though this is in direct contradiction of Einstein, it does solve a lot of problems in cosmology.