On the non-Markovianity of quantum semi-Markov processes

• URL: http://arxiv.org/abs/2012.11219v2
• Date: Fri, 4 Feb 2022 00:07:09 GMT
• Title: On the non-Markovianity of quantum semi-Markov processes
• Authors: Shrikant Utagi, Subhashish Banerjee, R. Srikanth
• Abstract summary: The non-Markovianity of the process called the quantum semi-Markov (QSM) process is studied. An operational meaning to the non-Markovian nature of QSM processes is provided.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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.

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