The non-Markovian correlated projection operator technique is applied to the model of a central spin coupled to a spin bath through non uniform XX Heisenberg coupling. The second order results of the Nakajima-Zwanzig and of the time-convolutionless methods are compared with the exact solution considering a fully polarized initial bath state.
Ferraro, E., Breuer, H.P., Napoli, A., Guccione, M., Messina, A. (2008). Non-markovian master equation for the XX central spin model. ??????? it.cilea.surplus.oa.citation.tipologie.CitationProceedings.prensentedAt ??????? ICTON-MW 2008 - International Conference on Transparent Optical Networks "Mediterranean Winter" [10.1109/ICTONMW.2008.4773079].
Non-markovian master equation for the XX central spin model
FERRARO, Elena;NAPOLI, Anna;GUCCIONE, Marina;MESSINA, Antonino
2008-01-01
Abstract
The non-Markovian correlated projection operator technique is applied to the model of a central spin coupled to a spin bath through non uniform XX Heisenberg coupling. The second order results of the Nakajima-Zwanzig and of the time-convolutionless methods are compared with the exact solution considering a fully polarized initial bath state.
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