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Protected boundary states in gapless topological phases
Shunji Matsuura, Po-Yao Chang, Andreas P. Schnyder +1
We systematically study gapless topological phases of (semi-)metals and nodal superconductors described by Bloch and Bogoliubov-de Gennes Hamiltonians. Using K-theory, a classifica…
Evidence for Time-Reversal-Symmetry-Broken Superconductivity in Locally Noncentrosymmetric SrPtAs
P. K. Biswas, H. Luetkens, T. Neupert +16
We report the magnetic and superconducting properties of locally noncentrosymmetric SrPtAs obtained by muon-spin-rotation/relaxation (muSR) measurements. Zero-field muSR reveals th…
Theory of nonequilibrium dynamics of multiband superconductors
Alireza Akbari, Andreas P. Schnyder, Dirk Manske +1
We study the nonequilibrium dynamics of multiband BCS superconductors subjected to ultrashort pump pulses. Using density-matrix theory, the time evolution of the Bogoliubov quasipa…