Kondo Effect in the Helical Edge Liquid of the Quantum Spin Hall State
Kondo Effect in the Helical Edge Liquid of the Quantum Spin Hall State
Following the recent observation of the quantum spin Hall (QSH) effect in HgTe quantum wells, an important issue is to understand the effect of impurities on transport in the QSH regime. Using linear response and renormalization group methods, we calculate the edge conductance of a QSH insulator as a function …