Detecting metrologically useful asymmetry and entanglement by a few local measurements

Important properties of a quantum system are not directly measurable, but they can be disclosed by how fast the system changes under controlled perturbations. In particular, asymmetry and entanglement can be verified by reconstructing the state of a quantum system. Yet, this usually requires experim...

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Bibliographic Details
Main Authors: Zhang, C, Yadin, B, Hou, Z, Cao, H, Liu, B, Huang, Y, Maity, R, Vedral, V, Li, C, Guo, G, Girolami, D
Format: Journal article
Language:English
Published: American Physical Society 2017