不变信息与量子态估计
Invariant information and quantum state estimation
摘要：
由Brukner和Zeilinger，Phys. Rev. Lett. 83，3354（1999）中的方法，从量子态估计的角度重新考虑。我们表明，它是直接相关的标准重建的平均误差从测量一套完整的互补可观测量。我们给出了它的推广的Fisher信息。如果采用最佳重构，则相应的量失去其不变特性。
英文摘要：
The invariant information introduced by Brukner and Zeilinger, Phys. Rev. Lett. 83, 3354 (1999), is reconsidered from the point of view of quantum state estimation. We show that it is directly related to the mean error of the standard reconstruction from the measurement of a complete set of mutually complementary observables. We give its generalization in terms of the Fisher information. Provided that the optimum reconstruction is adopted, the corresponding quantity loses its invariant character.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
