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arXiv · 2110.05211

Detecting genuine multipartite entanglement in three-qubit systems with eternal non-Markovianity

Ankit Vaishy·Subhadip Mitra·Samyadeb Bhattacharya
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Abstract

We devise a novel protocol to detect genuinely multipartite entangled states by harnessing quantum non-Markovian operations. We utilize a particular type of non-Markovianity known as the eternal non-Markovianity to construct a non-complete positive map to filter out the bi-separable states and detect genuine multipartite entanglement. We further propose a witness operator to detect genuinely multipartite entangled states experimentally based on this theory. Our study sheds light on a hitherto unexplored connection between entanglement theory and quantum non-Markovianity.

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Ankit Vaishy, Subhadip Mitra, Samyadeb Bhattacharya. 2021-10-11. Detecting genuine multipartite entanglement in three-qubit systems with eternal non-Markovianity. https://doi.org/10.1088/1751-8121%2Fac677e

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