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

被引：255

作者：

Stafford, CA ^{[1
]}

Wingreen, NS ^{[1
]}

机构：

[1] NEC RES INST,PRINCETON,NJ 08540

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.76.1916

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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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页码：1916 / 1919

页数：4

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