Abstract
A classically forbidden, transitory enhancement of the high positive momentum components of a quantum wave packet during its collision with a potential barrier is described. A quantity is defined to measure its importance; the universality of the effect is justified, and its main features are studied with the aid of an analytically solvable model. Its relation to other “anomalously high velocities” is also examined.
- Received 17 March 1998
DOI:https://doi.org/10.1103/PhysRevLett.81.2621
©1998 American Physical Society
