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dc.contributor.authorBernardes, Nadja K.
dc.contributor.authorRibeiro de Carvalho, Andre
dc.contributor.authorMonken, Carlos H.
dc.contributor.authorSantos, Marcelo F.
dc.date.accessioned2017-08-01T01:42:45Z
dc.date.available2017-08-01T01:42:45Z
dc.date.issued2017
dc.identifier.issn2469-9926
dc.identifier.doi10.1103/PhysRevA.95.032117
dc.identifier.urihttp://hdl.handle.net/10072/342749
dc.description.abstractThe dynamics of systems subjected to noise is called Markovian in the absence of memory effects, i.e., when its immediate future depends only on its present. Time correlations in the noise source may generate non-Markovian effects that, sometimes, can be erased by appropriately coarse graining the time evolution of the system. In general, the coarse-graining time t CG is taken to be much larger than the correlation time τ but no direct relation between them is established. Here we analytically obtain a relation between t CG and τ for the dynamics of a qubit subjected to a time-correlated environment. Our results can be applied in principle to any distribution of the environmental correlations and can be tested through a collisional model where the qubit sequentially interacts with correlated qutrits.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherAmerican Physical Society
dc.relation.ispartofpagefrom032117-1
dc.relation.ispartofpageto032117-6
dc.relation.ispartofissue3
dc.relation.ispartofjournalPhysical Review A
dc.relation.ispartofvolume95
dc.subject.fieldofresearchQuantum Physics not elsewhere classified
dc.subject.fieldofresearchcode020699
dc.titleCoarse graining a non-Markovian collisional model
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionAccepted Manuscript (AM)
gro.rights.copyright© 2017 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorRibeiro de Carvalho, Andre R.


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