Landauer formula for the current through an interacting electron region

Yigal Meir and Ned S. Wingreen
Phys. Rev. Lett. 68, 2512 – Published 20 April 1992
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Abstract

A Landauer formula for the current through a region of interacting electrons is derived using the nonequilibrium Keldysh formalism. The case of proportionate coupling to the left and right leads, where the formula takes an especially simple form, is studied in more detail. Two particular examples where interactions give rise to novel effects in the current are discussed: In the Kondo regime, an enhanced conductance is predicted, while a suppressed conductance is predicted for tunneling through a quantum dot in the fractional quantum Hall regime.

  • Received 21 January 1992

DOI:https://doi.org/10.1103/PhysRevLett.68.2512

©1992 American Physical Society

Authors & Affiliations

Yigal Meir

  • Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
  • Department of Physics, University of California–Santa Barbara, Santa Barbara, California 93106

Ned S. Wingreen

  • Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

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Issue

Vol. 68, Iss. 16 — 20 April 1992

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