Pseudo-density-matrix measures detect eternal CP-indivisibility that temporal steering, trace distance, and entropic measures miss, and a new continuous-time causality measure generalizes the Rivas-Huelga-Plenio witness.
Hall, and Howard M
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Detecting and quantifying non-Markovianity via quantum direct cause
Pseudo-density-matrix measures detect eternal CP-indivisibility that temporal steering, trace distance, and entropic measures miss, and a new continuous-time causality measure generalizes the Rivas-Huelga-Plenio witness.