The discussion centers on the quantum mechanics (QM) of photon absorption by an accelerating atom, specifically whether this process is instantaneous or influenced by the atom's change in velocity. Participants highlight that an atom absorbs photons at specific energy levels, which are determined by its electron configurations. The Doppler effect is debated, with some asserting it does not significantly impact absorption, while others emphasize that the frequency of the incident photon remains constant only in an inertial frame. The conversation suggests that the absorption process may involve complex interactions over time, particularly when the atom is not in a purely inertial frame.
PREREQUISITESPhysicists, quantum mechanics students, and researchers interested in the interactions between light and matter, particularly in non-inertial frames.
Leo.Ki said:I'm wondering whether QM considers photon absorption by an accelerating atom as an instantaneous event, or the change in velocity (and proper time) of the atom affects the perceived distribution of the wave packet and the outcome of the process. In other words, is there a "Doppler gradient" affecting the absorption? Thanks!