Many-body effects in quantum rings: From the Aharonov-Bohm transport to the quantum Hall regime

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Abstract

We present our recent theoretical findings on the physics of semiconductor quantum rings containing several interacting electrons. Using time-dependent density-functional theory we show that the interactions preserve the Aharonov-Bohm oscillations in quantum transport as a function of the magnetic flux, whereas increasing the ring width strongly suppresses the oscillations. Secondly, we demonstrate that various quantum Hall states in quantum rings can be characterized in a consistent way.

Original languageEnglish
Title of host publicationPHYSICS OF SEMICONDUCTORS: 30TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS
EditorsJ Ihm, H Cheong
Place of PublicationMELVILLE
Number of pages2
DOIs
Publication statusPublished - 2011
Externally publishedYes
Publication typeA4 Article in conference proceedings
Event30th International Conference on the Physics of Semiconductors (ICPS-30) - Seoul, Finland
Duration: 25 Jul 201030 Jul 2010

Publication series

NameAIP Conference Proceedings
PublisherAMER INST PHYSICS
Volume1399
ISSN (Print)0094-243X

Conference

Conference30th International Conference on the Physics of Semiconductors (ICPS-30)
Country/TerritoryFinland
Period25/07/1030/07/10

Keywords

  • quantum ring
  • quantum transport
  • density-functional theory

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