Journal Article

PreJuSER-58018

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Dephasing of a quantum dot due to the Coulomb interaction with a gate electrode

Woodford, S. R. ; Bringer, A. ; Indlekofer, K. M.FZJ*

2007
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/2889  doi:10.1103/PhysRevB.76.064306

Abstract: Dephasing of quantum dots presents an intrinsic limitation on their use for quantum computing. We consider the dephasing of a double quantum dot caused by the Coulomb interaction with nearby gate electrodes and show that this occurs on a much longer time scale than dephasing due to phonons. However, the effect grows rapidly stronger as the system size decreases, and therefore it is expected to limit potential miniaturization of these systems.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Halbleiter-Nanoelektronik (IBN-1)
2. Center of Nanoelectronic Systems for Information Technology (CNI)
3. Quanten-Theorie der Materialien (IFF-1)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2007
Notes: Copyright APS. This version is available at http://prb.aps.org/

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