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

Carole Addis, Bogna Bylicka, Dariusz Chrus̈ciński, Sabrina Maniscalco

Research output: Contribution to journalArticle

84 Citations (Scopus)
59 Downloads (Pure)

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.

Original languageEnglish
Article number052103
JournalPhysical Review A
Volume90
Issue number5
DOIs
Publication statusPublished - 5 Nov 2014

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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