317 citations · 1.5k across the 18 of their papers we have counts for
5 papers · 1 filter
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…
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…
Zero-voltage conductance peak from weak antilocalization in a Majorana nanowire
D. I. Pikulin, J. P. Dahlhaus, M. Wimmer +2
We show that weak antilocalization by disorder competes with resonant Andreev reflection from a Majorana zero-mode to produce a zero-voltage conductance peak of order e^2/h in a su…
Andreev reflection from a topological superconductor with chiral symmetry
M. Diez, J. P. Dahlhaus, M. Wimmer +1
It was pointed out by Tewari and Sau that chiral symmetry (H -> -H if e <-> h) of the Hamiltonian of electron-hole (e-h) excitations in an N-mode superconducting wire is associated…
Metal--topological-insulator transition in the quantum kicked rotator with Z2 symmetry
E. P. L. van Nieuwenburg, J. M. Edge, J. P. Dahlhaus +2
The quantum kicked rotator is a periodically driven dynamical system with a metal-insulator transition. We extend the model so that it includes phase transitions between a metal an…