The discussion centers on the feasibility of photon-induced pair production of positron-electron pairs under conditions of insufficient energy (hv<2Me*c^2) and the implications of quantum tunneling. It is established that a single photon cannot achieve this in free space without violating conservation laws, necessitating a pair of photons for successful pair production. The concept of quantum tunneling is explored, but the participants clarify that pair production is not merely a matter of overcoming a potential barrier, as it involves fundamental principles of quantum mechanics.
PREREQUISITESPhysicists, students of quantum mechanics, and anyone interested in the intricacies of particle interactions and energy conservation in quantum systems.
Superposed_Cat said:a photon being converted to a positron-electron pair
Superposed_Cat said:we lack enough energy for this to happen (hv<2Me*c^2) but the difference is smaller than the uncertainty amount
Superposed_Cat said:If we have a photon being converted to a positron-electron pair, but we lack enough energy for this to happen (hv<2Me*c^2) but the difference is smaller than the uncertainty amount, such that tunneling may be possible, would the resultant pair have net negative energy? Would tunneling even be possible in this case? Any help appreciated.