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arXiv:1402.4975 · Physical Review A

Comparative study of non-Markovianity measures in exactly solvable one- and two-qubit models

Carole Addis, Bogna Bylicka, Dariusz Chruściński, Sabrina Maniscalco

Published Nov 5, 2014• 146 citations
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Abstract

In this paper we present a detailed critical study of several recently proposed non-Markovianity measures. We analyze their properties for single-qubit and two-qubit systems in both pure-dephasing and dissipative scenarios. More specifically we investigate and compare their computability, their physical meaning, their Markovian to non-Markovian crossover, and their additivity properties with respect to the number of qubits. The bottom-up approach that we pursue is aimed at identifying similarities and differences in the behavior of non-Markovianity indicators in several paradigmatic open system models. This, in turn, allows us to infer the leading traits of the variegated phenomenon known as non-Markovian dynamics.

DOI
10.1103/physreva.90.052103

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