Quantum phase transition in a two-channel-Kondo quantum dot device

M. Pustilnik, L. Borda, L. I. Glazman, J. Von Delft

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We develop a theory of electron transport in a double quantum dot device recently proposed in [Y. Oreg and D. Goldhaber-Gordon, Phys. Rev. Lett. 90, 136602 (2003)] for the observation of the two-channel Kondo effect. Our theory provides a strategy for tuning the device to the non-Fermi-liquid fixed point, which is a quantum critical point in the space of device parameters. We explore the corresponding quantum phase transition, and make explicit predictions for behavior of the differential conductance in the vicinity of the quantum critical point.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number11
Publication statusPublished - Mar 15 2004


ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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