Two-electron photoemission spectroscopy in topological superconductors
Two-electron photoemission spectroscopy in topological superconductors
We demonstrate that the photoelectron counting rate, ${P}^{(2)}$, measured in two-electron coincidence spectroscopy experiments, provides insight into the nature of topological superconductivity. In particular, we show that the spin dependence of ${P}^{(2)}$ allows one to detect superconducting spin-triplet correlations that are induced in a topological superconductor even in the absence …