Magnetic field switching in parallel quantum dots

, , and

Published 19 November 2009 • Europhysics Letters Association
, , Citation Feng Li et al 2009 EPL 88 37001 DOI 10.1209/0295-5075/88/37001

Download Article PDF

Article metrics

338 Total downloads

Share this article

Author affiliations

1 State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences - P.O. Box 912, Beijing 100083, China

2 National Center for Theoretical Science - Tainan, Taiwan 70101, ROC

3 Department of Physics and Center for Quantum Information Science, National Cheng Kung University Tainan, Taiwan 70101, ROC

4 Department of Particle Physics, Weizmann Institute of Science - Rehovot 76100, Israel

Dates

  1. Received 5 August 2009
  2. Accepted 13 October 2009
  3. Published
Journal RSS
Sign up for new issue notifications
0295-5075/88/3/37001

Abstract

We show that the Coulomb blockade in parallel dots pierced by magnetic flux Φ completely blocks the resonant current for any value of Φ except for integer multiples of the flux quantum Φ0. This non-analytic (switching) dependence of the current on Φ arises only when the dot states that carry the current are of the same energy. The time needed to reach the steady state, however, diverges when Φ→nΦ0.

Export citation and abstract BibTeX RIS

Previous article in issue
Next article in issue
10.1209/0295-5075/88/37001