量子非破坏测量

P. Grangier
{"title":"量子非破坏测量","authors":"P. Grangier","doi":"10.1109/CLEOE.2000.909818","DOIUrl":null,"url":null,"abstract":"Summary form only given. The present techniques allow one to perform continuous or discrete quantum measurements at or even beyond the standard \"quantum noise\" level, even on single quantum objects. In this context, Kip Thorne and Vladimir Braginsky introduced in the seventies the concept of \"Quantum Non Demolition (QND) measurement\", which was initially meant to be applied to mechanical harmonic oscillators designed for detecting gravitational waves, the so-called \"Weber's bars\". But the QND ideas encountered a real success in quantum optics, where quantum fluctuations are readily accessible, and can also be circumvented. We review the state of the art of QND measurements, in this broad sense of sub-shot-noise optical information processing. Most of the initial objectives of QND measurements have now been successfully reached through proof-of-principle experiments. The domain is now opening on future perspectives related to quantum information processing (e.g. quantum cryptography), either with \"discrete\" or \"continuous\" quantum variables. In this context the close relationship between QND measurements and controlled-NOT (CNOT) gates are discussed and illustrated.","PeriodicalId":250878,"journal":{"name":"Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Quantum nondemolition measurements\",\"authors\":\"P. Grangier\",\"doi\":\"10.1109/CLEOE.2000.909818\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Summary form only given. The present techniques allow one to perform continuous or discrete quantum measurements at or even beyond the standard \\\"quantum noise\\\" level, even on single quantum objects. In this context, Kip Thorne and Vladimir Braginsky introduced in the seventies the concept of \\\"Quantum Non Demolition (QND) measurement\\\", which was initially meant to be applied to mechanical harmonic oscillators designed for detecting gravitational waves, the so-called \\\"Weber's bars\\\". But the QND ideas encountered a real success in quantum optics, where quantum fluctuations are readily accessible, and can also be circumvented. We review the state of the art of QND measurements, in this broad sense of sub-shot-noise optical information processing. Most of the initial objectives of QND measurements have now been successfully reached through proof-of-principle experiments. The domain is now opening on future perspectives related to quantum information processing (e.g. quantum cryptography), either with \\\"discrete\\\" or \\\"continuous\\\" quantum variables. In this context the close relationship between QND measurements and controlled-NOT (CNOT) gates are discussed and illustrated.\",\"PeriodicalId\":250878,\"journal\":{\"name\":\"Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)\",\"volume\":\"31 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-09-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CLEOE.2000.909818\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Digest. 2000 Conference on Lasers and Electro-Optics Europe (Cat. No.00TH8505)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CLEOE.2000.909818","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3

摘要

只提供摘要形式。目前的技术允许人们在甚至超过标准“量子噪声”水平上进行连续或离散的量子测量,甚至在单量子物体上也是如此。在这种背景下,基普·索恩和弗拉基米尔·布拉金斯基在70年代引入了“量子不破坏(QND)测量”的概念,该概念最初旨在应用于设计用于探测引力波的机械谐波振荡器,即所谓的“韦伯杆”。但是量子量子点的想法在量子光学中获得了真正的成功,在量子光学中,量子涨落很容易获得,也可以被规避。我们回顾了广义的亚脉冲噪声光学信息处理中QND测量的现状。QND测量的大多数初始目标现在已经通过原理验证实验成功实现。该领域现在正在开放与量子信息处理(例如量子密码学)相关的未来前景,无论是“离散”还是“连续”量子变量。在此背景下,讨论和说明了QND测量与可控非(CNOT)门之间的密切关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quantum nondemolition measurements
Summary form only given. The present techniques allow one to perform continuous or discrete quantum measurements at or even beyond the standard "quantum noise" level, even on single quantum objects. In this context, Kip Thorne and Vladimir Braginsky introduced in the seventies the concept of "Quantum Non Demolition (QND) measurement", which was initially meant to be applied to mechanical harmonic oscillators designed for detecting gravitational waves, the so-called "Weber's bars". But the QND ideas encountered a real success in quantum optics, where quantum fluctuations are readily accessible, and can also be circumvented. We review the state of the art of QND measurements, in this broad sense of sub-shot-noise optical information processing. Most of the initial objectives of QND measurements have now been successfully reached through proof-of-principle experiments. The domain is now opening on future perspectives related to quantum information processing (e.g. quantum cryptography), either with "discrete" or "continuous" quantum variables. In this context the close relationship between QND measurements and controlled-NOT (CNOT) gates are discussed and illustrated.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信