Answers are grounded in this paper and cite their sources.
The general quantum propagator for a particle in a potential-free region of the vacuum is shown to have a form analogous to that of a classical Lévy stochastic process and not that of a Gaussian wave packet.
No takes yet. Share an insight, caveat, or question.
Bruce J. West (2000) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: