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
Subtitle of host publicationMesoscopic Superconductivity and Spintronics, Proceedings of the International Symposium
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages327-332
Number of pages6
ISBN (Print)9812814612, 9789812814616
DOIs
Publication statusPublished - 2008 Jan 1
Event4th International Symposium on Mesoscopic Superconductivity and Spintronics, MS+S 2006 - Atsugi, Japan
Duration: 2006 Feb 272006 Mar 2

Publication series

NameMS+S 2006 - Controllable Quantum States: Mesoscopic Superconductivity and Spintronics, Proceedings of the International Symposium

Other

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

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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    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). (MS+S 2006 - Controllable Quantum States: Mesoscopic Superconductivity and Spintronics, Proceedings of the International Symposium). World Scientific Publishing Co. Pte Ltd. https://doi.org/10.1142/9789812814623_0052