On measures of non-Markovianity: divisibility vs. backflow of information
classification
🪐 quant-ph
math-phmath.MP
keywords
measuresdivisibilitynon-markovianityadditionagreeanalyzebackflowconcept
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We analyze two recently proposed measures of non-Markovianity: one based on the concept of divisibility of the dynamical map and the other one based on distinguishability of quantum states. We provide a toy model to show that these two measures need not agree. In addition, we discuss possible generalizations and intricate relations between these measures.
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