Electron transport through a laterally coupled triple quantum dot forming Aharonov-Bohm interferometer

T. Kubo, Y. Tokura, S. Amaha, T. Hatano, S. Tarucha

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

Abstract

We theoretically discuss coherent charge transport through an Aharonov-Bohm interferometer formed by a triple quantum dot using the nonequilibrium Green's function method. In particular, we introduce the coherent indirect coupling parameter α, which characterizes the indirect coupling strength via the reservoir between two quantum dots. When α = 0, the period of the Aharonov-Bohm oscillations for the linear conductance is h/e. For α=0, the period of the AB oscillations becomes 3h/e associated with the three small triangular paths of electrons, which are formed by the triple quantum dot and the reservoir.

Original languageEnglish
Title of host publicationProceedings of the 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages186-189
Number of pages4
ISBN (Print)981428212X, 9789814282123
DOIs
Publication statusPublished - 2009
Event9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008 - Hatoyama, Saitama, Japan
Duration: 2008 Aug 252008 Aug 28

Publication series

NameProceedings of the 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008

Other

Other9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008
CountryJapan
CityHatoyama, Saitama
Period08/8/2508/8/28

Keywords

  • Aharonov-Bohm oscillation
  • Coherent indirect coupling
  • Laterally coupled triple quantum dot

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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