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Open access Sep 2026

Gap-closing experimental estimation of quantum Fisher information

Estimating the quantum Fisher information (QFI) is a central task in quantum science and technology, underpinning the benchmarking of measurement devices and the certification of metrological advantages. Owing to the highly nonlinear dependence of the QFI on the quantum state, achieving efficient estimates that reliabl...

Qian-Xi Zhang, Qi-Ming Ding, Hu Chen et al. · 0 citations

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