On measures of non-Markovianity: divisibility vs. backflow of information

Details On measures of non-Markovianity: divisibility vs. backflow of information On measures of non-Markovianity: divisibility vs. backflow of information

2011-02-21

arxiv.org/abs/1102.4318v2

Phys. Rev. A 83, 052128 (2011)

Physics

Quantum Physics

7 pages; new section is added

Scientific paper

10.1103/PhysRevA.83.052128

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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