二元通信中用于压缩相干态的赫尔斯托姆界限

Helstrom Bound for Squeezed Coherent States in Binary Communication.

作者信息

Curado Evaldo M F, Faci Sofiane, Gazeau Jean-Pierre, Noguera Diego

机构信息

Centro Brasileiro de Pesquisas Físicas, Rua Xavier Sigaud 150, Rio de Janeiro 22290-180, Brazil.

National Institute of Science and Technology for Complex Systems, Rua Xavier Sigaud 150, Rio de Janeiro 22290-180, Brazil.

出版信息

Entropy (Basel). 2022 Jan 31;24(2):220. doi: 10.3390/e24020220.

DOI:10.3390/e24020220

PMID:35205514

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8871272/

Abstract

In quantum information processing, using a receiver device to differentiate between two non-orthogonal states leads to a quantum error probability. The minimum possible error is known as the Helstrom bound. In this work, we study the conditions for state discrimination using an alphabet of squeezed coherent states and compare them with conditions using the Glauber-Sudarshan, i.e., standard, coherent states.

摘要

在量子信息处理中，使用接收设备区分两个非正交态会导致量子误差概率。最小可能误差被称为赫尔斯托姆界。在这项工作中，我们研究了使用压缩相干态字母表进行态区分的条件，并将其与使用格劳伯 - 苏达山（即标准）相干态的条件进行比较。