Phase coherent transmission through interacting mesoscopic systems

Authors
Citation
G. Hackenbroich, Phase coherent transmission through interacting mesoscopic systems, PHYS REPORT, 343(6), 2001, pp. 464-538
Citations number
90
Categorie Soggetti
Physics
Journal title
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
ISSN journal
03701573 → ACNP
Volume
343
Issue
6
Year of publication
2001
Pages
464 - 538
Database
ISI
SICI code
0370-1573(200103)343:6<464:PCTTIM>2.0.ZU;2-N
Abstract
This is a review of the phase coherent transmission through interacting mes oscopic conductors. As a paradigm we study the transmission amplitude and t he dephasing rate for electron transport through a quantum dot in the Coulo mb blockade regime. We summarize experimental and theoretical work devoted to the phase of the transmission amplitude. It is shown that the evolution of the transmission phase may be dominated by non-universal features in the short-time dynamics of the quantum dot. The controlled dephasing in Coulom b-coupled conductors is investigated. Examples comprise a single or multipl e quantum dots in close vicinity to a quantum point contact. The current th rough the quantum point contact "measures" the state of the dots and causes dephasing. The dephasing rate is derived using widely different theoretica l approaches. The Coulomb coupling between mesoscopic conductors may prove useful for future work on electron coherence and quantum computing. (C) 200 1 Elsevier Science B.V. All rights reserved.