1997/10/16 by Masahito Hayashi, Hayashi, Masahito
Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #quant-ph
paper · pdf · doi:10.48550/arxiv.quant-ph/9710040
LaTeX, 6 pages, submitted to The Proceedings of 5th International Conference on Squeezed States and Uncertainty Relations
arxiv created 1997/10/16 · arxiv updated 2009/12/01
For the precise estimation of the unknown quantum state, the independent samples should be prepared. Can we reduce the error of the estimation by the measurement using the quantum correlation between every sample? In this paper, this question is treated in the parameter estimation for the unknown state.