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Role of topology and symmetry for the edge currents of a two-dimensional superconductor
2022
The bulk-boundary correspondence guarantees topologically protected edge states in a two-dimensional topological superconductor. Unlike in topological insulators, these edge states are, however, not connected to a quantized (spin) current as the electron number is not conserved in a Bogolyubov-de Gennes Hamiltonian. Still, edge currents are in general present. Here we use the two-dimensional Rashba system as an example to systematically analyze the effect symmetry reductions have on the
doi:10.3929/ethz-b-000543491
fatcat:wcjo7alx7ndobokewf4ljyr2iu