We study the interplay between forgetful and memory-keeping evolution enforced on a two-level system by a multi-spin environment whose elements are coupled to local bosonic baths. Contrarily to the expectation that any non-Markovian effect would be buried by the forgetful mechanism induced by the spin-bath coupling, one can actually induce a full Markovian–to–non-Markovian transition of the two-level system’s dynamics, controllable by parameters such as the mismatch between the energy of the two-level system and of the spin environment. For a symmetric coupling, the amount of non-Markovianity surprisingly grows with the number of decoherence channels.
Tuning non-Markovianity by spin-dynamics control / Lorenzo, S; Plastina, Francesco; Paternostro, M.. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 87(2013).
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Titolo: | Tuning non-Markovianity by spin-dynamics control |
Autori: | |
Data di pubblicazione: | 2013 |
Rivista: | |
Citazione: | Tuning non-Markovianity by spin-dynamics control / Lorenzo, S; Plastina, Francesco; Paternostro, M.. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 87(2013). |
Handle: | http://hdl.handle.net/20.500.11770/139588 |
Appare nelle tipologie: | 1.1 Articolo in rivista |