Quantum chaotic scattering in graphene systems

Rui Yang, Liang Huang, Ying-Cheng Lai, Celso Grebogi

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38 Citations (Scopus)

Abstract

We investigate the transport fluctuations in both non-relativistic quantum dots and graphene quantum dots with both hyperbolic and nonhyperbolic chaotic scattering dynamics in the classical limit. We find that nonhyperbolic dots generate sharper resonances than those in the hyperbolic case. Strikingly, for the graphene dots, the resonances tend to be much sharper. This means that transmission or conductance fluctuations are characteristically greatly enhanced in relativistic as compared to non-relativistic quantum systems. Copyright (C) EPLA, 2011

Original languageEnglish
Article number40004
Number of pages5
JournalEurophysics Letters
Volume94
Issue number4
DOIs
Publication statusPublished - May 2011

Keywords

  • fractal conductance fluctuations
  • Sinai billiard
  • cavities
  • soft

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