Shot Noise in Ballistic Quantum Dots with a Mixed Classical Phase Space

H.-S. Sim and H. Schomerus
Phys. Rev. Lett. 89, 066801 – Published 19 July 2002

Abstract

We investigate shot noise for quantum dots whose classical phase space consists of both regular and chaotic regions. The noise is systematically suppressed below the universal value of fully chaotic systems, by an amount which varies with the positions of the leads. We analyze the dynamical origin of this effect by a novel way to incorporate diffractive impurity scattering. The dependence of the shot noise on the scattering rate shows that the suppression arises due to the deterministic nature of transport through regular regions and along short chaotic trajectories. Shot noise can be used to probe phase-space structures of quantum dots with generic classical dynamics.

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  • Received 5 March 2002

DOI:https://doi.org/10.1103/PhysRevLett.89.066801

©2002 American Physical Society

Authors & Affiliations

H.-S. Sim and H. Schomerus

  • Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Strasse 38, 01187 Dresden, Germany

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Issue

Vol. 89, Iss. 6 — 5 August 2002

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