Universal homodyne tomography with a single local oscillator

被引：15

作者：

D'Ariano, GM ^{[1
]}

Sacchi, MF

Kumar, P

机构：

[1] Univ Pavia, Dipartimento Fis A Volta, Via A Bassi 6, I-27100 Pavia, Italy

[2] INFM, I-27100 Pavia, Italy

[3] Northwestern Univ, Dept Elect & Comp Engn, Evanston, IL 60208 USA

来源：

PHYSICAL REVIEW A | 2000年 / 61卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.61.013806

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We propose a general method for measuring an arbitrary observable of a multimode electromagnetic field using homodyne detection with a single local oscillator. In this method the local oscillator scans over all possible linear combinations of the modes. The case of two modes is analyzed in detail and the feasibility of the measurement is studied on the basis of Monte Carlo simulations. We also provide an application of this method in tomographic testing of the Greenberger-Horne-Zeilinger state.

引用

页数：8

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