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Quantum Shot Noise at Local-Tunneling Contacts on Mesoscopic Multiprobe Conductors

Contributors

Gramespacher, Thomas; Buttiker, Markus

Published in

Physical review letters, vol. 81, no. 13, p. 2763-2766

Publication date

1998

Abstract

New experiments that measure the low-frequency shot-noise spectrum at local tunneling contacts on mesoscopic structures are proposed. The current fluctuation spectrum at a single tunneling tip is determined by local partial densities of states. The current-correlation spectrum between two tunneling tips is sensitive to non-diagonal density of states elements which are expressed in terms of products of scattering states of the conductor. Thus such an experiment permits to investigate correlations of electronic wave functions. We present specific results for a clean wire with a single barrier and for metallic diffusive conductors.

UNIGE affiliation entities

Citation (ISO format)

GRAMESPACHER, Thomas, BUTTIKER, Markus. Quantum Shot Noise at Local-Tunneling Contacts on Mesoscopic Multiprobe Conductors. In: Physical review letters, 1998, vol. 81, n° 13, p. 2763–2766. doi: 10.1103/PhysRevLett.81.2763

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Article

Identifiers

Journal ISSN

0031-9007
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Technical informations

Creation

30/11/2009 15:08:33

First validation

30/11/2009 15:08:33

Update

14/03/2023 15:18:15

Status update

14/03/2023 15:18:15

Last indexation

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