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Efficient Quantum State Estimation with Over-complete Tomography

It is widely accepted that the selection of measurement bases can affect the efficiency of quantum state estimation methods, precision of estimating an unknown state can be improved significantly by simply introduce a set of symmetrical measurement bases. Here we compare the efficiencies of estimations with different numbers of measurement bases by numerical simulation and experiment in optical system. The advantages of using a complete set of symmetrical measurement bases are illustrated more clearly.

preprint2012arXivOpen access
Chi ZhangGuo-Yong XiangYong-Sheng ZhangChuan-Feng LiGuang-Can Guo
quant-ph
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Open access5 authors1 topic
Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
Citations: 0Reviews: 0Saves: 0Code: not linkedDataset: not linkedInstitutions: 0

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Chi ZhangGuo-Yong XiangYong-Sheng ZhangChuan-Feng LiGuang-Can Guo

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