Volume 63, Number 3, August 2003
|Page(s)||426 - 432|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 November 2003|
Interaction-induced quantum dephasing in mesoscopic rings
Institut für Theoretische Festkörperphysik, Universität Karlsruhe D-76128 Karlsruhe, Germany
2 I. E. Tamm Department of Theoretical Physics, P. N. Lebedev Physics Institute 119991 Moscow, Russia
3 Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco E-28049 Madrid, Spain
4 Forschungszentrum Karlsruhe, Institut für Nanotechnologie D-76021 Karlsruhe, Germany
Accepted: 2 June 2003
Combining nonperturbative techniques with Monte Carlo simulations, we demonstrate that quantum coherence effects for a particle on a ring are suppressed beyond a finite length even at zero temperature if the particle is coupled to a diffusive electron gas by means of long-range Coulomb interaction. This length is consistent with derived from a weak-localization–type analysis.
PACS: 73.23.Ra – Persistent currents / 72.10.-d – Theory of electronic transport; scattering mechanisms / 71.10.-w – Theories and models of many-electron systems
© EDP Sciences, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.