Nonequilibrium transport in Aharonov-Bohm interferometer with electron-phonon interaction

Akiko Ueda, Mikio Eto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We theoretically investigate an effect of electron-phonon (e-ph) interaction on transport properties in an Aharonov-Bohm (AB) ring with an embedded quantum dot. The current under finite bias is calculated using Keldysh Green function method. The e-ph interaction is taken into account by self-consistent Born approximation. We find that the amplitude of the Fano resonance diminishes and the asymmetric shape grows like a symmetric one with an increase in the bias voltage. This is in qualitative agreement with experimental results. We also study the e-ph interaction in an interferometer of double quantum dots.

Original languageEnglish
Title of host publicationMS+S 2006 - Controllable Quantum States: Mesoscopic Superconductivity and Spintronics, Proceedings of the International Symposium
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages327-332
Number of pages6
ISBN (Print)9812814612, 9789812814616
Publication statusPublished - 2008
Event4th International Symposium on Mesoscopic Superconductivity and Spintronics, MS+S 2006 - Atsugi, Japan
Duration: 2006 Feb 272006 Mar 2

Other

Other4th International Symposium on Mesoscopic Superconductivity and Spintronics, MS+S 2006
CountryJapan
CityAtsugi
Period06/2/2706/3/2

Fingerprint

Electron-phonon interactions
Interferometers
Semiconductor quantum dots
Electron transport properties
Born approximation
Bias voltage
Green's function

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Ueda, A., & Eto, M. (2008). Nonequilibrium transport in Aharonov-Bohm interferometer with electron-phonon interaction. In MS+S 2006 - Controllable Quantum States: Mesoscopic Superconductivity and Spintronics, Proceedings of the International Symposium (pp. 327-332). World Scientific Publishing Co. Pte Ltd.

Nonequilibrium transport in Aharonov-Bohm interferometer with electron-phonon interaction. / Ueda, Akiko; Eto, Mikio.

MS+S 2006 - Controllable Quantum States: Mesoscopic Superconductivity and Spintronics, Proceedings of the International Symposium. World Scientific Publishing Co. Pte Ltd, 2008. p. 327-332.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ueda, A & Eto, M 2008, Nonequilibrium transport in Aharonov-Bohm interferometer with electron-phonon interaction. in MS+S 2006 - Controllable Quantum States: Mesoscopic Superconductivity and Spintronics, Proceedings of the International Symposium. World Scientific Publishing Co. Pte Ltd, pp. 327-332, 4th International Symposium on Mesoscopic Superconductivity and Spintronics, MS+S 2006, Atsugi, Japan, 06/2/27.
Ueda A, Eto M. Nonequilibrium transport in Aharonov-Bohm interferometer with electron-phonon interaction. In MS+S 2006 - Controllable Quantum States: Mesoscopic Superconductivity and Spintronics, Proceedings of the International Symposium. World Scientific Publishing Co. Pte Ltd. 2008. p. 327-332
Ueda, Akiko ; Eto, Mikio. / Nonequilibrium transport in Aharonov-Bohm interferometer with electron-phonon interaction. MS+S 2006 - Controllable Quantum States: Mesoscopic Superconductivity and Spintronics, Proceedings of the International Symposium. World Scientific Publishing Co. Pte Ltd, 2008. pp. 327-332
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