Quantum criticality in Kondo quantum dot coupled to helical edge states of interacting 2D topological insulators

POSTER

Abstract

We investigate theoretically the quantum phase transition (QPT) between the one-channel Kondo (1CK) and two-channel Kondo (2CK) fixed points in a quantum dot coupled to helical edge states of interacting 2D topological insulators (2DTI) with Luttinger parameter $0

*We acknowledge the support from the NSC grants No.98-2112-M-009-010-MY3, No.101-2628- M-009-001-MY3, the MOE-ATU program, the CTS of NCTU, the NCTS of Taiwan, R.O.C..

Authors

  • Chung-Hou Chung

    • Department of Electrophysics, National Chiao-Tung University and Physics Division, National Center for Theoretical Sciences, HsinChu, Taiwan, R.O.C.
    • Department of Electrophysics, National Chiao-Tung University, HsinChu, Taiwan, R.O.C.

  • Salman Silotri

    • Department of Electrophysics, National Chiao-Tung University, HsinChu, Taiwan, R.O.C.