Abstract
Due to a transient quantum interference during a wave packet collision with a potential barrier, a particular momentum, that depends on the potential parameters, but is close to the initial average momentum, becomes suppressed. The hole left pushes the momentum distribution outwards leading to a significant constructive enhancement of lower and higher momenta. This is explained in the momentum complex-plane language in terms of a saddle point and two contiguous “structural” poles, which are not associated with resonances but with incident and transmitted components of the wave function.
- Received 9 May 2000
DOI:https://doi.org/10.1103/PhysRevA.64.012710
©2001 American Physical Society
