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

C. A. Stafford; Ned S. Wingreen

doi:10.1103/PhysRevLett.76.1916

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 journal › Article › peer-review

267 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 language	English (US)
Pages (from-to)	1916-1919
Number of pages	4
Journal	Physical review letters
Volume	76
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.76.1916
State	Published - 1996

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Access to Document

10.1103/PhysRevLett.76.1916

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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.",

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