Estimating the properties of quantum states is a fundamental task in both theoretical and experimental quantum physics. While numerous Pauli-based measurement strategies have been proposed, none explicitly exploit prior knowledge of structural features such as symmetry. Here, we introduce a compact measurement scheme t...
Hu Chen, Bu-Jiao Wu, Qian-Xi Zhang et al.· Physical Review Letters· 0 citations
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.· Science Advances· 2 citations· ⚡1
It is shown that the shared resource under DREAM is closely related to the teleportation capability, quantified by the magic of the teleported state, and is strictly richer than treating the two resources independently.
Xiao Yuan, Wenhao Zhang, Qi-Ming Ding et al.· 2 citations
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