Abstract
If the Ehrenfest time of a ballistic cavity is not negligible in comparison to its dwell time , the weak localization correction to the cavity’s transmission is suppressed proportional to . At the same time, quantum interference enhances the probability of reflection into the mode of incidence by a factor two. This “enhanced backscattering” does not depend on the Ehrenfest time. We show that, in addition to the diagonal enhanced backscattering, there are off-diagonal contributions to coherent backscattering that become relevant if .
- Received 30 December 2005
DOI:https://doi.org/10.1103/PhysRevLett.96.196804
©2006 American Physical Society