Resonant photon-assisted tunneling through a double quantum dot: An electron pump from spatial rabi oscillations

C. A. Stafford, Ned S. Wingreen

Research output: Contribution to journalArticle

266 Scopus citations

Abstract

The time average of the fully nonlinear current through a double quantum dot, subject to an arbitrary combination of ac and dc voltages, is calculated exactly using the Keldysh nonequilibrium Green function technique. When driven on resonance, the system functions as an efficient electron pump due to Rabi oscillation between the dots. The pumping current is maximum when the coupling to the leads equals the Rabi frequency.

Original languageEnglish (US)
Pages (from-to)1916-1919
Number of pages4
JournalPhysical review letters
Volume76
Issue number11
DOIs
StatePublished - Jan 1 1996
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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