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arXiv · 2107.14730

Witnessing quantum steering by means of the Fisher information

Ilaria Gianani·Vincenzo Berardi·Marco Barbieri
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Abstract

Capturing specific kinds of quantum correlation is of paramount importance for quantum networking. Different routes can be taken to achieve this task, highlighting different novel aspects of such quantum correlations. Following the recent theoretical results by Yadin, Fadel and Gessner [Nat. Commun. 12, 2410 (2021)], we demonstrate experimentally how steering manifests in the metrological abilities of a bipartite state. Our results confirm the relevance of this novel approach, and compare the outcome with already employed alternatives.

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Ilaria Gianani, Vincenzo Berardi, Marco Barbieri. 2021-07-30. Witnessing quantum steering by means of the Fisher information. https://doi.org/10.1103/physreva.105.022421, 10.1103/physreva.107.039901

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