Tunneling and nonhyperbolicity in quantum dots

Alessandro P S De Moura, Ying-Cheng Lai, Richard Akis, Jonathan P. Bird, David K. Ferry

Research output: Contribution to journalArticlepeer-review

69 Scopus citations


Due to the quantum-mechanical tunneling of the electrons through the Kolmogorov-Arnol'd-Moser (KAM) island many features in electron transport in realistic quantum dots could not be explained. A set of tunneling resonances caused by low-period stable and unstable periodic orbits led to conductance oscillations. It was found that the tunneling played a major role in mesoscopic transport. It was also found that while conductance of the small dots was dominated by the periodic oscillations, the periodic nature of oscillations became steadily obscured as the dot size increased.

Original languageEnglish (US)
Article number236804
Pages (from-to)2368041-2368044
Number of pages4
JournalPhysical Review Letters
Issue number23
StatePublished - Jun 10 2002

ASJC Scopus subject areas

  • General Physics and Astronomy


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