Universality of Shot Noise in Multiterminal Diffusive Conductors

Eugene V. Sukhorukov; Daniel Loss

doi:10.1103/PhysRevLett.80.4959

Universality of Shot Noise in Multiterminal Diffusive Conductors

Eugene V. Sukhorukov and Daniel Loss

Phys. Rev. Lett. 80, 4959 – Published 1 June 1998

Abstract

We prove the universality of shot noise in multiterminal diffusive conductors of arbitrary shape and dimension for purely elastic scattering as well as for hot electrons. Using a Boltzmann-Langevin approach we reduce the calculation of shot-noise correlators to the solution of a diffusion equation. We show that shot noise in multiterminal conductors is a nonlocal quantity and that exchange effects can occur without quantum phase coherence even at zero electron temperature. Concrete numbers for shot noise are given that can be tested experimentally.

Received 20 January 1998

DOI:https://doi.org/10.1103/PhysRevLett.80.4959

Authors & Affiliations

Eugene V. Sukhorukov^* and Daniel Loss^†

Department of Physics and Astronomy, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland

^*On leave from Institute of Microelectronics Technology, Russian Academy of Sciences, Chernogolovka, Russia.Electronic address: sukhorukov@ubaclu.unibas.ch
^†Electronic address: loss@ubaclu.unibas.ch