Influence of electron-phonon interaction on Fano resonance in Aharonov-Bohm interferometer

Akiko Ueda, Mikio Eto

研究成果: Conference contribution

抜粋

We theoretically study the effect of electron-phonon (e-ph) interaction on a Fano resonance in an Aharonov-Bohm interferometer with an embedded quantum dot. We examine the bias-voltage (V) dependence of the decoherence, using Keldysh Green function method and perturbation with respect to e-ph interaction. With optical phonons of energy ω0, only the elastic process takes place when eV < ω0, in which electrons emit and absorb phonons virtually. The process suppresses the resonant amplitude. When eV > ω0, the inelastic process is possible which is accompaniedby real emission of phonons. It results in the dephasing and broadens the resonant width. With acoustic phonons, the asymmetric shape of the Fano resonance grows like a symmetric one as the bias voltage increases, in qualitative accordance with experimental results.

元の言語English
ホスト出版物のタイトルPhysics of Semiconductors - 28th International Conference on the Physics of Semiconductors, ICPS 2006, Part A and B
ページ839-840
ページ数2
DOI
出版物ステータスPublished - 2007 12 1
イベント28th International Conference on the Physics of Semiconductors, ICPS 2006 - Vienna, Austria
継続期間: 2006 7 242006 7 28

出版物シリーズ

名前AIP Conference Proceedings
893
ISSN(印刷物)0094-243X
ISSN(電子版)1551-7616

Other

Other28th International Conference on the Physics of Semiconductors, ICPS 2006
Austria
Vienna
期間06/7/2406/7/28

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント Influence of electron-phonon interaction on Fano resonance in Aharonov-Bohm interferometer' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Ueda, A., & Eto, M. (2007). Influence of electron-phonon interaction on Fano resonance in Aharonov-Bohm interferometer. : Physics of Semiconductors - 28th International Conference on the Physics of Semiconductors, ICPS 2006, Part A and B (pp. 839-840). (AIP Conference Proceedings; 巻数 893). https://doi.org/10.1063/1.2730152