Scheme for linear optical preparation of a type of four-photon entangled state with conventional photon detectors

被引：22
|
作者：
Wang, H. F. [1 ]
Zhang, S. [1 ,2 ]
机构：
[1] Harbin Inst Technol, Ctr Condensed Matter Sci & Technol, Harbin 150001, Heilongjiang, Peoples R China
[2] Yanbian Univ, Coll Sci, Dept Phys, Yanji 133002, Jilin, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL D | 2009年 / 53卷 / 03期
基金：
中国国家自然科学基金;
关键词：
SINGLE QUANTUM-DOT; GENERATION;
D O I：
10.1140/epjd/e2009-00129-2
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a simple experimental scheme to prepare a type of four-photon entangled state |chi > that has many interesting entanglement properties and possible applications in quantum information processing with a certain success probability. The proposed setup involves only simple linear optical devices, a single-photon polarization state, three pairs of two-photon polarization entangled states, and the conventional photon detectors that cannot distinguish a single photon from two or more photons, which greatly simplify the experimental realization of the scheme.
引用
收藏
页码：359 / 363
页数：5
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