Comparing different non-Markovianity measures: A case study

Details Comparing different non-Markovianity measures: A case study Comparing different non-Markovianity measures: A case study

2010-11-24

arxiv.org/abs/1011.5328v2

Phys. Rev. A 83, 012112 (2011)

Physics

Quantum Physics

5 pages, no figures. Published version with minor modifications

Scientific paper

We consider two recently proposed measures of non-Markovianity applied to a particular quantum process describing the dynamics of a driven qubit in a structured reservoir. The motivation of this study is twofold: on one hand, we study the differences and analogies of the non-Markovianity measures and on the other hand, we investigate the effect of the driving force on the dissipative dynamics of the qubit. In particular we ask if the drive introduces new channels for energy and/or information transfer between the system and the environment, or amplifies existing ones. We show under which conditions the presence of the drive slows down the inevitable loss of quantum properties of the qubit.

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