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arXiv · 1601.00273

Tripartite Entanglement Dynamics in the presence of Non-Markovian Environment

DaeKil Park
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Abstract

We study on the tripartite entanglement dynamics when each party is initially entangled with other parties, but they locally interact with their own non-Markovian environment. First, we consider three GHZ-type initial states, all of which have GHZ symmetry provided that the parameters are chosen appropriately. However, this symmetry is broken due to the effect of environment. The corresponding $π$-tangles, one of the tripartite entanglement measure, are analytically computed at arbitrary time. The revival phenomenon of entanglement occurs after complete disappearance of entanglement. We also consider two W-type initial states. The revival phenomenon also occurs in this case. On the analytical ground the robustness issue against the effect of environment is examined for both GHZ-type and W-type initial states.

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DaeKil Park. 2016-05-13. Tripartite Entanglement Dynamics in the presence of Non-Markovian Environment. https://doi.org/10.1007/s11128-016-1331-y

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