Issue |
EPL
Volume 85, Number 5, March 2009
|
|
---|---|---|
Article Number | 57008 | |
Number of page(s) | 5 | |
Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
DOI | https://doi.org/10.1209/0295-5075/85/57008 | |
Published online | 19 March 2009 |
Waiting time distributions of electron transfers through quantum dot Aharonov-Bohm interferometers
1
Department of Chemistry, Hong Kong University of Science and Technology - Kowloon, Hong Kong
2
Department of Chemistry, University of California - Irvine, CA, USA
Corresponding authors: wesv@ust.hk yyan@ust.hk
Received:
6
November
2008
Accepted:
13
February
2009
We present an analysis of waiting time distributions of consecutive single-electron transfers through a double-quantum-dot Aharonov-Bohm interferometer. Waiting time distributions qualitatively indicate the presence of interferences and provide information on orbital-detuning and coherent interdot-electron transfer. The frequencies of interdot-transferinduced oscillations are Aharonov-Bohm phase sensitive, while those due to level detuning are phase independent. The signature of the quantum interference in the waiting-time distribution is more apparent for weakly coupled electron transfer detectors.
PACS: 73.63.Kv – Quantum dots / 74.40.+k – Fluctuations (noise, chaos, nonequilibrium superconductivity, localization, etc.) / 73.23.Hk – Coulomb blockade; single-electron tunneling
© EPLA, 2009
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