Abstract
A dc current can be pumped through a quantum dot by periodically varying two independent parameters and like a gate voltage or magnetic field. We present a formula that relates the pumped current to the parametric derivatives of the scattering matrix of the system. As an application we compute the statistical distribution of the pumped current in the case of a chaotic quantum dot.
- Received 18 June 1998
DOI:https://doi.org/10.1103/PhysRevB.58.R10135
©1998 American Physical Society