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cond-mat.supr-con2012★ 151 cited
Fermion-parity anomaly of the critical supercurrent in the quantum spin-Hall effect
C. W. J. Beenakker, D. I. Pikulin, T. Hyart +2
The helical edge state of a quantum spin-Hall insulator can carry a supercurrent in equilibrium between two superconducting electrodes (separation L, coherence length xi). We calcu…
cond-mat.supr-con2012★ 14 cited
Scattering theory of topological invariants in nodal superconductors
J. P. Dahlhaus, M. Gibertini, C. W. J. Beenakker
Time-reversal invariant superconductors having nodes of vanishing excitation gap support zero-energy boundary states with topological protection. Existing expressions for the topol…