Início
Agenda
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- 08 de agosto de 2018
16h30 Sala
18 (Cristalografia) -
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Nadja
Kolb Bernardes
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DF-UFPE
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A
correlation measure detecting almost all non-Markovian
evolutions
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We investigate the ability of correlation measures
to witness non-Markovian open quantum
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system dynamics. It is shown that the mutual
information and any entanglement measure between the
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system and an ancilla do not witness all
non-Markovian dynamics. A new correlation measure is
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introduced, and it is proven that, in an enlarged
setting with two ancillary systems, this measure
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detects almost all non-Markovian dynamics, except
possibly a zero-measure set of dynamics that is
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non-bijective in finite time-intervals. Our proof
is constructive and provides different initial states
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detecting the non-Markovian evolutions. These
states are all separable and some are arbitrarily close
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to a product state.
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