Optimal discrimination of M coherent states with a small quantum computer

被引：2

作者：

da Silva, Marcus P. ^{[1
]}

Guha, Saikat ^{[1
]}

Dutton, Zachary ^{[1
]}

机构：

[1] Raytheon BBN Technol, Cambridge, MA USA

来源：

ELEVENTH INTERNATIONAL CONFERENCE ON QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTATION (QCMC) | 2014年 / 1633卷

关键词：

quantum communications; quantum information; quantum measurement;

D O I：

10.1063/1.4903144

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The ability to distinguish between coherent states optimally plays in important role in the efficient usage of quantum resources for classical communication and sensing applications. While it has been known since the early 1970's how to optimally distinguish between two coherent states, generalizations to larger sets of coherent states have so far failed to reach optimality. In this work we outline how optimality can be achieved by using a small quantum computer, building on recent proposals for optimal qubit state discrimination with multiple copies.

引用

页码：225 / 227

页数：3