QUANTUM LOCAL ASYMPTOTIC NORMALITY BASED ON A NEW QUANTUM LIKELIHOOD RATIO

成果类型:
Article
署名作者:
Yamagata, Koichi; Fujiwara, Akio; Gill, Richard D.
署名单位:
University of Osaka; Leiden University - Excl LUMC; Leiden University
刊物名称:
ANNALS OF STATISTICS
ISSN/ISSBN:
0090-5364
DOI:
10.1214/13-AOS1147
发表日期:
2013
页码:
2197-2217
关键词:
摘要:
We develop a theory of local asymptotic normality in the quantum domain based on a novel quantum analogue of the log-likelihood ratio. This formulation is applicable to any quantum statistical model satisfying a mild smoothness condition. As an application, we prove the asymptotic achievability of the Holevo bound for the local shift parameter.