OPTIMUM QUANTUM DECISION BETWEEN A PURE AND A MIXED STATE WITH APPLICATION TO DETECTION OF TCS SIGNALS

被引：12

作者：

HELSTROM, CW

机构：

[1] Department of Applied Physics and Information Science, University of California, San Diego, La Jolla, CA 92093

来源：

IEEE TRANSACTIONS ON INFORMATION THEORY | 1979年 / 25卷 / 01期

关键词：

D O I：

10.1109/TIT.1979.1055980

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A method is given for calculating the minimum average error probability attainable in deciding between a mixed state and a pure state of a quantum system. It is applied, first, to the detection of a noisy coherent pulse represented by a state with a Gaussian P-representation and, second, to the detection of a signal represented at the transmitter by a two-photon coherent state (TCS). In both problems the field of the receiver is free of background noise and, when no signal was transmitted, is in the ground state. © 1979 IEEE

引用

页码：69 / 76

页数：8

共 6 条

[1] Helstrom C. W., 1976, QUANTUM DETECTION ES
[2] DETECTION THEORY AND QUANTUM MECHANICS .2.
HELSTROM, CW
[J]. INFORMATION AND CONTROL, 1968, 13 (02): : 156 - &
[3] SHAPIRO J, UNPUBLISHED
[4] OPTICAL COMMUNICATION WITH 2-PHOTON COHERENT STATES .1. QUANTUM-STATE PROPAGATION AND QUANTUM-NOISE REDUCTION
YUEN, HP
SHAPIRO, JH
[J]. IEEE TRANSACTIONS ON INFORMATION THEORY, 1978, 24 (06) : 657 - 668
[5] YUEN HP, 1976, PHYS REV A, V13, P2226, DOI 10.1103/PhysRevA.13.2226
[6] [No title captured]

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