Four-photon quantum interferometry at a telecom wavelength

被引：22
|
作者：
Yabuno, Masahiro [1 ]
Shimizu, Ryosuke [2 ]
Mitsumori, Yasuyoshi [1 ]
Kosaka, Hideo [1 ]
Edamatsu, Keiichi [1 ]
机构：
[1] Tohoku Univ, Res Inst Elect Commun, Sendai, Miyagi 9808577, Japan
[2] Univ Electrocommun, Ctr Frontier Sci & Engn, Tokyo 1828585, Japan
来源：
PHYSICAL REVIEW A | 2012年 / 86卷 / 01期
基金：
日本学术振兴会;
关键词：
BROGLIE WAVELENGTH; PHOTONS; INFORMATION;
D O I：
10.1103/PhysRevA.86.010302
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report on an experimental demonstration of four-photon quantum interference using telecom-wavelength photons. The realization of multiphoton quantum interference is essential to linear optics quantum information processing and measurement-based quantum computing. We have developed a source that efficiently emits photon pairs in a pure spectrotemporal mode at a telecom-wavelength region, and have demonstrated quantum interference exhibiting reduced fringe intervals that correspond to a reduced de Broglie wavelength of up to the four-photon NOON state. Our result should open a path to practical quantum information processing using telecom-wavelength photons.
引用
收藏
页数：4
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