Present and future free-space quantum key distribution

被引：49

作者：

Nordholt, JE ^{[1
]}

Hughes, RJ ^{[1
]}

Morgan, GL ^{[1
]}

Peterson, CG ^{[1
]}

Wipf, CC ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Biophys Grp, Los Alamos, NM 87544 USA

来源：

FREE-SPACE LASER COMMUNICATION TECHNOLOGIES XIV | 2002年 / 4635卷

关键词：

quantum cryptography; quantum key distribution; free-space; optical communications;

D O I：

10.1117/12.464085

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Free-space quantum key distribution (QKD), more popularly know as quantum cryptography, uses single-photon free-space optical communications to distribute the secret keys required for secure communications. At Los Alamos National Laboratory we have demonstrated a fully automated system that is capable of operations at any time of day over a horizontal range of several kilometers. This has proven the technology is capable of operation from a spacecraft to the ground, opening up the possibility of QKD between any group of users anywhere on Earth. This system, the prototyping of a new system for use on a spacecraft, and the techniques required for world -wide quantum key distribution will be described. The operational parameters and performance of a system designed to operate between low earth orbit (LEO) and the ground will also be discussed.

引用

页码：116 / 126

页数：11

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