A quantum Rosetta stone for interferometry

被引：401

作者：

Lee, H ^{[1
]}

Kok, P ^{[1
]}

Dowling, JP ^{[1
]}

机构：

[1] CALTECH, Jet Prop Lab, Quantum Comp Technol Grp, Sect 367, Pasadena, CA 91109 USA

来源：

JOURNAL OF MODERN OPTICS | 2002年 / 49卷 / 14-15期

关键词：

D O I：

10.1080/0950034021000011536

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Heisenberg-limited measurement protocols can be used to gain an increase in measurement precision over classical protocols. Such measurements can be implemented using, for example, optical Mach-Zehnder interferometers and Ramsey spectroscopes. We address the formal equivalence between the Mach-Zehnder interferometer, the Ramsey spectroscope and a generic quantum logic circuit. Based on this equivalence we introduce the 'quantum Rosetta stone', and we describe a projective-measurement scheme for generating the desired correlations between the interferometric input states in order to achieve Heisenberg-limited sensitivity. The Rosetta stone then tells us that the same method should work in atom spectroscopy.

引用

页码：2325 / 2338

页数：14

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