Noncommutative Lebesgue decomposition with application to quantum local asymptotic normality
Akio Fujiwara, Koichi Yamagata
We develop a theory of local asymptotic normality in the quantum domain based on a noncommutative extension of the Lebesgue decomposition. This formulation gives a substantial generalization of the previous paper [Yamagata, Fujiwara, and Gill (2013). Ann. Statist., 41, 2197-2217.], extending the scope of the quantum local asymptotic normality to a wider class of quantum statistical models that comprise density operators of mixed ranks.
arXiv:1703.07535•Mar 22, 2017•1 citation