Non-Markovian quantum dynamics: local versus non-local

Repozytorium Uniwersytetu Mikołaja Kopernika

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dc.contributor.author Chruściński, Dariusz
dc.contributor.author Kossakowski, Andrzej
dc.date.accessioned 2012-11-30T08:46:17Z
dc.date.available 2012-11-30T08:46:17Z
dc.date.issued 2010-01-10
dc.identifier.citation Phys. Rev. Lett. 104, 070406 (2010)
dc.identifier.uri http://repozytorium.umk.pl/handle/item/183
dc.description.abstract We analyze non-Markovian evolution of open quantum systems. It is shown that any dynamical map representing evolution of such a system may be described either by non-local master equation with memory kernel or equivalently by equation which is local in time. These two descriptions are complementary: if one is simple the other is quite involved, or even singular, and vice versa. The price one pays for the local approach is that the corresponding generator keeps the memory about the starting point `t_0'. This is the very essence of non-Markovianity. Interestingly, this generator might be highly singular, nevertheless, the corresponding dynamics is perfectly regular. Remarkably, singularities of generator may lead to interesting physical phenomena like revival of coherence or sudden death and revival of entanglement.
dc.language.iso eng
dc.relation.uri http://arxiv.org/abs/0912.1259
dc.rights info:eu-repo/semantics/openAccess
dc.subject Quantum Physics
dc.title Non-Markovian quantum dynamics: local versus non-local
dc.type info:eu-repo/semantics/article


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