On the First Order Asymptotic Theory of Quantum Estimation

Details On the First Order Asymptotic Theory of Quantum Estimation On the First Order Asymptotic Theory of Quantum Estimation

2010-05-26

arxiv.org/abs/1005.4759v1

Physics

Quantum Physics

dedicated to Prof. Masafumi Akahira

Scientific paper

We give a rigorous treatment on the foundation of the first order asymptotic theory of quantum estimation, with tractable and reasonable regularity conditions. Different from past works, we do not use Fisher information nor MLE, and an optimal estimator is constructed based on locally unbiased estimators. Also, we treat state estimation by local operations and classical communications (LOCC), and estimation of quantum operations.

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