Steady-State Coherent Transfer by Adiabatic Passage

Abstract

We propose steady-state electron transport based on coherent transfer by adiabatic passage (CTAP) in a linearly arranged triple quantum dot with leads attached to the outer dots. Its main feature is repeated steering of single electrons from the first dot to the last dot without relevant occupation of the middle dot. The coupling to leads enables a steady-state current, whose shot noise is significantly suppressed provided that the CTAP protocol performs properly. This represents an indication for the direct transfer between spatially separated dots and, thus, may resolve the problem of finding experimental evidence for the non-occupation of the middle dot.

4 pages, 4 figures

References in corpus (7)

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• Coherent electronic transfer in quantum dot systems using adiabatic passage
• An electrostatically defined serial triple quantum dot charged with few electrons
• Current noise in a vibrating quantum dot array
• Bimodal Counting Statistics in Single Electron Tunneling through a Quantum Dot
• Spin correlations in spin blockade
• Measurement back-action on adiabatic coherent electron transport