Sequential double Auger decay in atoms: A quantum informatic analysis

摘要: Abstract We theoretically show that the process of inner-shell photoionization in an atom A, followed by spontaneous sequential emission two Auger electrons, produces various kinds spin-entangled states three flying electronic qubits. All properties these are completely pre-determined total spin quantum numbers four atomic species (i.e., A + ∗ , 2 3 ) participating this Russell–Saunders coupling. These tripartite readily characterized experimentally measuring only energies emitted without requiring any entanglement witness or other such protocols.