Location of Repository

Many-path interference and topologically suppressed tunneling

By S. Weigert and I. Herger

Abstract

Quantum interference is studied for a charged particle on a multiply connected configuration space. The holes of the space are assumed to accommodate independent magnetic fluxes. As follows from an instanton calculation, tunneling of the particle is suppressed completely in such a geometry for appropriately chosen field strengths. This set of values defines an algebraic variety in parameter space, not a manifold. The quenching persists even if the geometric symmetry of the system is broken. Aharonov-Bohm-type experiments and mesoscopic tunneling devices are natural candidates to observe many-path interference

Year: 1998
DOI identifier: 10.1209/epl
OAI identifier: oai:eprints.whiterose.ac.uk:1373

Suggested articles

Preview


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.