Effects of external radiation on biased Aharonov-Bohm rings

O. Entin-Wohlman*, Y. Imry, A. Aharony

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


We consider the currents flowing in a solid-state interferometer under the effect of both an Aharonov-Bohm phase and a bias potential. Expressions are obtained for these currents, allowing for electronic or electron-boson interactions, which may take place solely on a quantum dot placed on one of the interferometer arms. The boson system can be out of equilibrium. The results are used to obtain the transport current through the interferometer, and the current circulating around it under the effect of the Aharonov-Bohm flux. The modifications of both currents, brought about by coupling the quantum dot to an incoherent sonic or electromagnetic source, are then analyzed. By choosing the appropriate range of the boson source intensity and its frequency, the magnitude of the interference-related terms of both currents can be controlled.

Original languageEnglish
Article number075301
Pages (from-to)075301-1-075301-15
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number7
StatePublished - Aug 2004


FundersFunder number
German Israeli Project Cooperation
U.S. Department of Energy
Office of ScienceW-31-109-ENG-38
German-Israeli Foundation for Scientific Research and Development
Bundesministerium für Bildung und Forschung
Israel Science Foundation


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