Scattering approach to parametric pumping

Article

关键词: ULTRASMALL QUANTUM DOTS;    ELECTRON PUMP;    CONDUCTORS;    TRANSPORT;    MATRIX;   

DOI  :  10.1103/PhysRevB.58.R10135

来源: SCIE

【 摘 要 】

A dc current can be pumped through a quantum dot by periodically varying two independent parameters X-1 and X-2, like a gate voltage or magnetic field. We present a formula that relates the pumped current to the parametric derivatives of the scattering matrix S(X-1,X-2) of the system. As an application we compute the statistical distribution of the pumped current in the case of a chaotic quantum dot. [S0163-1829(98)52240-0].

【 授权许可】

Free