Tuning non-Markovianity by spin-dynamics control

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).



Titolo: Tuning non-Markovianity by spin-dynamics control
Autori: 
PLASTINA, Francesco
mostra contributor esterni 
Data di pubblicazione: 2013
Rivista: 
PHYSICAL REVIEW A  
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
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http://hdl.handle.net/20.500.11770/139588
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