Quantum Propagators for Geodesic Congruences
arXiv:2108.03115 · doi:10.22606/tp.2021.62001
Abstract
Using the Raychaudhuri equation, we show that a quantum probability amplitude (Feynman propagator) can be univocally associated to any timelike or null affinely parametrized geodesic congruence.
8 pages, 2 figures