On the non-Markovianity of quantum semi-Markov processes
arXiv:2012.11219 · doi:10.1007/s11128-021-03302-x
Abstract
The non-Markovianity of the stochastic process called the quantum semi-Markov (QSM) process is studied using a recently proposed quantification of memory based on the deviation from semigroup evolution, that provides a unified description of divisible and indivisible channels. This is shown to bring out the property of QSM processes to exhibit memory effects even in the CP-divisible regime, in agreement with an earlier result. An operational meaning to the non-Markovian nature of semi-Markov processes is also provided.
arXiv comment7 pages, 3 figures
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