18/01/16 15:30H Talk @ UFRJ – Nadja Kolb Bernardes – UFMG

Title: Experimental Observation of Weak Non-Markovianity

Abstract:

Non-Markovianity has recently attracted large interest due to significant advances in its characterization and its exploitation for quantum information processing. However, up to now, only non-Markovian regimes featuring environment to system backflow of information (strong non-Markovianity) have been experimentally simulated. Here, we report an all-optical observation of the so-called weak non-Markovian dynamics. Through full process tomography, we experimentally demonstrate that the dynamics of a qubit can be non-Markovian despite an always increasing correlation between the system and its environment. We also show the transition from the weak to the strong regime by changing a single parameter in the environmental state, leading us to a better understanding of the fundamental features of non-Markovianity.

UFRJ- Centro de Tecnologia do Fundão, Bloco A, sala 343

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