O Seminário de Ótica da próxima terça-feira, 19 de novembro (14 horas, no Auditório do DF/UFPE) será apresentado pela professora Nadja Bernardes (Departamento de Física-UFPE).

Título: Correlation measures and non-Markovianity in open quantum systems dynamics

Resumo: We investigate the ability of correlation measures to witness non-Markovian open system dynamics. It is shown that that the quantum mutual information between system and ancilla as well as any entanglement measure, both commonly used for the characterization of non-Markovianity, are unable to witness all non-completely-positive-divisible dynamics. A new correlation measure for an enlarged setting with two ancillas is introduced, and it is shown that this measure witness non-Markovian dynamics for all bijective non-completely-positive-divisible evolutions.