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Noise in multiterminal diffusive conductors : universality, nonlocality, and exchange effects

Sukhorukov, E. V. and Loss, D.. (1999) Noise in multiterminal diffusive conductors : universality, nonlocality, and exchange effects. Physical Review B, Vol. 59, H. 20. pp. 13054-13066.

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Official URL: http://edoc.unibas.ch/dok/A5254756

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Abstract

We study noise and transport in multiterminal diffusive conductors. Using a Boltzmann-Langevin equation approach we reduce the calculation of shot-noise correlators to the solution of diffusion equations. Within this approach 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. We show that shot noise in multiterminal conductors is a nonlocal quantity and that exchange effects can occur in the absence of quantum phase coherence even at zero electron temperature; It is also shown that the exchange effect measured in one contact is always negative - in agreement with the Pauli principle. We discuss a new phenomenon in which current noise is induced by thermal transport. We propose a possible experiment to measure locally the effective noise temperature. Concrete numbers for shot noise are given that can be tested experimentally.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss)
UniBasel Contributors:Loss, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Institute of Physics
ISSN:0163-1829
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:22 Mar 2012 14:25
Deposited On:22 Mar 2012 13:48

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