Non-Markovian dynamics from band edge effects and static disorder

Abstract

It was recently shown [S. Lorenzo et al., Sci. Rep. 7, 42729 (2017)] that the presence of static disorder in a bosonic bath - whose normal modes thus become all Anderson-localised - leads to non-Markovianity in the emission of an atom weakly coupled to it (a process which in absence of disorder is fully Markovian). Here, we extend the above analysis beyond the weak-coupling regime for a finite-band bath so as to account for band edge effects. We study the interplay of these with static disorder in the emergence of non-Markovian behaviour in terms of a suitable non-Markovianity measure.

5 pages, 1 figures, accepted to "International Journal of Quantum Information" as a contribution to the upcoming special issue

References in corpus (2)

• Atom-field dressed states in slow-light waveguide QED
• Quantum non-Markovianity induced by Anderson localization

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• Suppressing decoherence in quantum state transfer with unitary operations