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Journal Articles Physical Review Letters Year : 2021

Metrological Detection of Multipartite Entanglement from Young Diagrams

Abstract

We characterize metrologically useful multipartite entanglement by representing partitions with Young diagrams. We derive entanglement witnesses that are sensitive to the shape of Young diagrams and show that Dyson's rank acts as a resource for quantum metrology. Common quantifiers, such as the entanglement depth and k-separability are contained in this approach as the diagram's width and height. Our methods are experimentally accessible in a wide range of atomic systems, as we illustrate by analyzing published data on the quantum Fisher information and spin-squeezing coefficients.
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Dates and versions

hal-03171031 , version 1 (16-03-2021)

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Zhihong Ren, Weidong Li, Augusto Smerzi, Manuel Gessner. Metrological Detection of Multipartite Entanglement from Young Diagrams. Physical Review Letters, 2021, 126 (8), pp.080502. ⟨10.1103/PhysRevLett.126.080502⟩. ⟨hal-03171031⟩
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