Journal
PHYSICAL REVIEW A
Volume 90, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.90.052103
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Funding
- Finnish Emil Aaltonen Foundation
- National Science Center [2011/01/N/ST2/00393, DEC-2011/03/B/ST2/00136]
- EPSRC (U.K.) via Doctoral Training Centre in Condensed Matter Physics
- Engineering and Physical Sciences Research Council [1281403] Funding Source: researchfish
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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.
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