Discrimination with error margin between two states: Case of general occurrence probabilities

Material type: 文書・図像類

Author: SUGIMOTO, Hほか

Publisher: The American Physical Society

Publication date: 2009-11

Material Format: Digital

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Note (General)：: We investigate a state discrimination problem which interpolates minimum error and unambiguous discrimination by introducing a margin for the probabil...

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Material Type: 文書・図像類
Title: Discrimination with error margin between two states: Case of general occurrence probabilities
Author/Editor: SUGIMOTO, H
HASHIMOTO, T
HORIBE, M
HAYASHI, A
Author Heading: SUGIMOTO, H
HASHIMOTO, T
HORIBE, M
HAYASHI, A
Publication, Distribution, etc.: The American Physical Society
Publication Date: 2009-11
Publication Date (W3CDTF): 2009-11
Periodical title: Physical Review A
No. or year of volume/issue: 80 5
Volume: 80
Issue: 5
Pages: 052322-1-052322-9
ISSN (Periodical Title): ISSN : 1050-2947
Text Language Code: eng
Subject Heading: Quantum information
Target Audience: 一般
Note (General): We investigate a state discrimination problem which interpolates minimum error and unambiguous discrimination by introducing a margin for the probability of error.We closely analyze discrimination of two pure states with general occurrence probabilities. The optimal measurements are classified into three types. One of the three types of measurement is optimal depending on parameters (occurrence probabilities and error margin). We determine the three domains in the parameter space and the optimal discrimination success probability in each domain in a fully analytic form. It is also shown that when the states to be discriminated are multipartite, the optimal success probability can be attained by local operations and classical communication. For discrimination of two mixed states, an upper bound of the optimal success probability is obtained.
Access Restrictions: 限定公開
Rights (production): The American Physical Society
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ