Shot noise in ballistic quantum dots with a mixed classical phase space

Sim, H. S.; Schomerus, H.

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Shot noise in ballistic quantum dots with a mixed classical phase space

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Sim, H. S.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Schomerus, H.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Sim, H. S., & Schomerus, H. (2002). Shot noise in ballistic quantum dots with a mixed classical phase space. Physical Review Letters, 89(6): 066801. Retrieved from http://ojps.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000089000006066801000001&idtype=cvips&gifs=yes.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-3729-4

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.