Enhancement and suppression of shot noise in capacitively coupled metallic double dots

M. Gattobigio; G. Iannaccone; M. Macucci

doi:10.1103/PhysRevB.65.115337

Enhancement and suppression of shot noise in capacitively coupled metallic double dots

M. Gattobigio, G. Iannaccone, and M. Macucci

Phys. Rev. B 65, 115337 – Published 8 March 2002

Abstract

We present the peculiar noise behavior of bistable systems of coupled quantum dots during switching between the two stable states. Shot noise of the current through different branches of the system can be suppressed and/or enhanced up to a few times the “full” shot-noise level. Results from Monte Carlo simulations and from an analytical model are presented.

Received 13 September 2001

DOI:https://doi.org/10.1103/PhysRevB.65.115337

Authors & Affiliations

M. Gattobigio^*

Scuola Normale Superiore, Piazza dei Cavalieri, 7, I-56126 Pisa, Italy

G. Iannaccone and M. Macucci

Dipartimento di Ingegneria dell’Informazione, Università degli Studi di Pisa, via Diotisalvi 2, I-56122 Pisa, Italy

^*Electronic address: gatto@sns.it

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Vol. 65, Iss. 11 — 15 March 2002

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