High-photon-number path entanglement in the interference of spontaneously down-converted photon pairs with coherent laser light

被引：84

作者：

Hofmann, Holger F. ^{[1
]}

Ono, Takafumi ^{[1
]}

机构：

[1] Hiroshima Univ, Grad Sch Adv Sci, Higashihiroshima 7398530, Japan

来源：

PHYSICAL REVIEW A | 2007年 / 76卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.76.031806

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show that the quantum interference between down-converted photon pairs and photons from coherent laser light can produce a maximally path entangled N-photon output component with a fidelity greater than 90% for arbitrarily high photon numbers. A simple beam splitter operation can thus transform the two-photon coherence of down-converted light into an almost optimal N-photon coherence.

引用

页数：4

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