Polarization squeezing and multipartite entanglement of triphoton states

被引：10

作者：

Jin, G. R. ^{[1
]}

Luo, S. ^{[1
]}

Liu, Y. C. ^{[1
]}

Jing, H. ^{[2
]}

Liu, W. M. ^{[3
]}

机构：

[1] Beijing Jiaotong Univ, Dept Phys, Beijing 100044, Peoples R China

[2] Henan Normal Univ, Dept Phys, Xinxiang 453007, Henan, Peoples R China

[3] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2010年 / 27卷 / 06期

基金：

中国国家自然科学基金;

关键词：

STANDARD QUANTUM LIMIT; STATISTICAL DISTANCE; SPECTROSCOPY; PHOTONS; SPACE;

D O I：

10.1364/JOSAB.27.00A105

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Based upon standard angular momentum theory, we develop a framework to investigate polarization squeezing and multipartite entanglement of a quantum light field. Both mean polarization and variances of the Stokes parameters are obtained analytically, with which we study recent observation of triphoton states [L.K. Shalm et al., Nature 457, 67 (2009)]. Our results show that the appearance of the maximally entangled NOON state accompanied by (|3,0 >(H,V)-i|3,0 >(H,V))root 2, is a flip of mean polarization and can be well understood in terms of quantum Fisher information. (C) 2010 Optical Society of America

引用

页码：A105 / A109

页数：5

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