Measuring arbitrary-order coherences: Tomography of single-mode multiphoton polarization-entangled states

被引：21

作者：

Schilling, U. ^{[1
]}

von Zanthier, J. ^{[1
]}

Agarwal, G. S. ^{[2
]}

机构：

[1] Univ Erlangen Nurnberg, Inst Opt Informat & Photon, D-91058 Erlangen, Germany

[2] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA

来源：

PHYSICAL REVIEW A | 2010年 / 81卷 / 01期

关键词：

ORBITAL ANGULAR-MOMENTUM; LIGHT;

D O I：

10.1103/PhysRevA.81.013826

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A scheme is discussed for measuring Nth-order coherences of two orthogonally polarized light fields in a single spatial mode at very limited experimental cost. To implement the scheme, the only measurements needed are the Nth-order intensity moments after the light beam has passed through two quarter-wave plates, one half-wave plate, and a polarizing beam splitter for specific settings of the wave plates. It is shown that this method can be applied for arbitrarily large N. A set of explicit values is given for the settings of the wave plates, constituting an optimal measurement of the Nth-order coherences for any N. For Fock states the method introduced here corresponds to a full state tomography. Applications of the scheme to systems other than polarization optics are discussed.

引用

页数：5

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