Charge pumping and photovoltaic effect in open quantum dots

Maxim G. Vavilov, Vinay Ambegaokar, and Igor L. Aleiner
Phys. Rev. B 63, 195313 – Published 25 April 2001
PDFExport Citation

Abstract

We propose a random matrix theory to describe the influence of a time-dependent external field on electron transport through open quantum dots. We describe the generation of the current by an oscillating field for the dot, connected to two leads with equal chemical potentials. For low-frequency fields, our results correspond to adiabatic charge pumping. Finite current can be produced if the system goes along a closed loop in parameter space, which covers a finite area. At high frequency, a finite current is produced even if the loop is a line in parameter space. This result can be explained in the same way as adiabatic pumping, but considering the evolution of the system in phase space rather than in parametric space.

  • Received 29 August 2000

DOI:https://doi.org/10.1103/PhysRevB.63.195313

©2001 American Physical Society

Authors & Affiliations

Maxim G. Vavilov and Vinay Ambegaokar

  • Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853

Igor L. Aleiner

  • Department of Physics and Astronomy, SUNY at Stony Brook, Stony Brook, New York 11794

References (Subscription Required)

Click to Expand
Issue

Vol. 63, Iss. 19 — 15 May 2001

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×