Profitable entanglement for channel discrimination-Reference-Cited by-同舟云学术

Profitable entanglement for channel discrimination

Published:2023-09 Issue:2277 Volume:479 Page:
ISSN:1364-5021
Container-title:Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
language:en
Short-container-title:Proc. R. Soc. A.

Author:

Oskouei Samad Khabbazi¹,Mancini Stefano²³,Rexiti Milajiguli²³^ORCID

Affiliation:

1. Department of Mathematics, Varamin-Pishva Branch, Islamic Azad University, Varamin 33817-7489, Iran

2. School of Science and Technology, University of Camerino,Via Madonna delle Carceri 9, Camerino I-62032, Italy

3. INFN–Sezione Perugia, Via A. Pascoli, Perugia I-06123, Italy

Abstract

We investigate the usefulness of side entanglement in discriminating between two generic qubit channels, up to unitary pre- and post-processing, and determine exact conditions under which it does enhance (as well as conditions under which it does not) the success probability. This is done in a constructive way by first analysing the problem for channels that are extremal in the set of completely positive and trace-preserving qubit linear maps and then for channels that are inside such a set.

Funder

European Union

QUARTET

Publisher

The Royal Society

Subject

General Physics and Astronomy,General Engineering,General Mathematics

Link

https://royalsocietypublishing.org/doi/pdf/10.1098/rspa.2022.0796

Reference20 articles.

1. Statistical Distinguishability between Unitary Operations

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4. Unambiguous discrimination among quantum operations

5. Quantum reading capacity

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