QUANTUM-NON-DEMOLITION MEASUREMENT OF THE PHASE

被引：12

作者：

BRAGINSKY, VB

KHALILI, FY

KULAGA, AA

机构：

[1] Department of Physics, Moscow State University

来源：

PHYSICS LETTERS A | 1995年 / 202卷 / 01期

关键词：

D O I：

10.1016/0375-9601(95)00279-C

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The problem of the QND measurement of the phase of a linear quantum oscillator is analyzed. It is shown that by measuring the quadrature amplitude one can reach a resolution close to the fundamental limit in a narrow range of phase values. A new method of QND phase measurement is proposed and analyzed. This method is also based on the coordinate interaction between the quantum object and the measuring device but is free from the limitation mentioned above. Several practical schemes of phase measurements are discussed.

引用

页码：1 / 6

页数：6

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