Journal article
Nonthreshold anomalous time advance in multichannel scattering
Abstract
We investigate scattering in a one-dimensional two-channel system using a model that is analytically tractable. We find anomalously large time advance over a small energy range of the transmission in the incident channel. This time advance for transmission occurs at energies above threshold of the second channel. Since this feature is related to the phase shifts of the interaction it is not peculiar to the form of the interaction. The anomalous …
Authors
van Dijk W; Spyksma K; West M
Journal
Physical Review A, Vol. 78, No. 2,
Publisher
American Physical Society (APS)
Publication Date
August 1, 2008
DOI
10.1103/physreva.78.022108
ISSN
2469-9926