Work

Two-sequential conclusive discrimination between binary coherent states via indirect measurements

Year: 2021

Type: article

Abstract: A general scenario for an N -sequential conclusive state discrimination introduced recently in Loubenets and Namkung [arXiv:2102.04747] can provide a multipartite quantum communication realizable in the presence of a noise. In the present article, we propose a new experimental scheme for the implementation of a sequential conclusive discrimination between binary coherent states via indirect measurements within the Jaynes–Cummings interaction model. We find that if the mean photon number is less than 1.6, then, for our two-sequential state discrimination scheme, the optimal success probability is larger than the one presented in Fields, Bergou, and Varga (2020, IEEE Int. Conf. Quant. Comp. Eng. ). We also show that, if the mean photon number is almost equal to 1.2, then the optimal success probability nearly approaches the Helstrom bound.

Source: Physica Scripta

DOI: 10.1088/1402-4896/ac0c56

Authors: Min Namkung, Elena R Loubenets

Institutions: National Research University Higher School of Economics, Steklov Mathematical Institute

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: Hanyang University, Russian Science Foundation, National Research University Higher School of Economics, Russian Academy of Sciences

Award: G2207321040