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Abstract: We consider the proximity effect between a singlet s-wave superconductor andthe edge of a Quantum Spin Hall QSH topological insulator. We establish thatAndreev reflection at a QSH edge state-superconductor interface is perfectwhile nonlocal Andreev processes through the superconductor are totallysuppressed. We compute the corresponding conductance and noise.



Autor: P. Adroguer, C. Grenier, D. Carpentier, J. Cayssol, P. Degiovanni, E. Orignac

Fuente: https://arxiv.org/







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