Signatures of classical chaos in gate-defined graphene quantum dots

ORAL

Abstract

A generic, non-integrable, gate-potential can not confine electrons in graphene. Integrable gate-defined quantum dots, in contrast, do have well defined bound states. This difference between integrable and non-integrable graphene quantum dots is revealed in e.g. the two terminal conductance, whose dependence on the gate potential strength is starkly different for the two cases.

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Authors

  • Jens H. Bardarson

    Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853-2501, USA

  • M. Titov

    School of Engineering \& Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK

  • Piet Brouwer

    Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853-2501, USA, LASSP, Cornell University, Cornell University