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Quantum impurity in the bulk of topological insulator
Hai-Feng Lu, Hai-Zhou Lu, Shun-Qing Shen +1
We investigate physical properties of an Anderson impurity embedded in the bulk of a topological insulator. The slave-boson mean-field approximation is used to account for the stro…
Intervalley Scattering and Localization Behaviors of Spin-Valley Coupled Dirac Fermions
Hai-Zhou Lu, Wang Yao, Di Xiao +1
We study the quantum diffusive transport of multivalley massive Dirac cones, where time-reversal symmetry requires opposite spin orientations in inequivalent valleys. We show that…
Nonlocal noise cross-correlation mediated by entangled Majorana fermions
Hai-Feng Lu, Hai-Zhou Lu, Shun-Qing Shen
Due to their nonlocality, qubits nested in Majorana bound states may be the key to realize decoherence-free quantum computation. Majorana bound states could be achieved at the ends…
Spin-orbit scattering in quantum diffusion of massive Dirac fermions
Wen-Yu Shan, Hai-Zhou Lu, Shun-Qing Shen
Effect of spin-orbit scattering on quantum diffusive transport of two-dimensional massive Dirac fermions is studied by the diagrammatic technique. The quantum diffusion of massive…