Optical Bell-state analysis in the coincidence basis

被引：32
|
作者：
Walborn, SP [1 ]
Nogueira, WAT [1 ]
Pádua, S [1 ]
Monken, CH [1 ]
机构：
[1] Univ Fed Minas Gerais, BR-30123970 Belo Horizonte, MG, Brazil
来源：
EUROPHYSICS LETTERS | 2003年 / 62卷 / 02期
关键词：
D O I：
10.1209/epl/i2003-00339-6
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Many quantum information protocols require a Bell-state measurement of entangled systems. Most optical Bell-state measurements utilize two-photon interference at a beam splitter. By creating polarization-entangled photons with spontaneous parametric down-conversion using a first-order Hermite-Gaussian pump beam, we invert the usual interference behavior and perform an incomplete Bell-state measurement in the coincidence basis. We discuss the possibility of a complete Bell-state measurement in the coincidence basis using hyperentangled states.
引用
收藏
页码：161 / 167
页数：7
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