Engineering of heralded narrowband color-entangled states

被引：8
|
作者：
Zavatta, A. [1 ,2 ,3 ]
Artoni, M. [2 ,4 ,5 ]
La Rocca, G. [6 ,7 ]
机构：
[1] Ist Nazl Ottica, CNR, Largo E Fermi 6, I-50125 Florence, Italy
[2] European Lab Nonlinear Spect, Via N Carrara 1, I-50019 Sesto Fiorentino, Italy
[3] Univ Firenze, Dipartimento Fis Astron, I-50019 Sesto Fiorentino, Italy
[4] Ist Nazl Ottica, CNR, Via Branze 45, I-25123 Brescia, Italy
[5] Brescia Univ, Dept Informat Engn, I-25123 Brescia, Italy
[6] Scuola Normale Super Pisa, I-56126 Pisa, Italy
[7] CNISM, I-56126 Pisa, Italy
来源：
PHYSICAL REVIEW A | 2019年 / 99卷 / 03期
基金：
中国国家自然科学基金;
关键词：
QUANTUM COMMUNICATION; PULSE-PROPAGATION;
D O I：
10.1103/PhysRevA.99.031802
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The efficient generation of entanglement is an essential requirement for quantum communications; however, long distances can only be achieved by utilizing entangled states that can be efficiently mapped into matter. Hence, sources generating states with bandwidths naturally compatible with the linewidths of atomic transitions are crucial. We harness the indistinguishability between two spontaneous four-wave mixing processes to achieve the heralded generation of single-photon frequency-bin entangled states. State manipulation admits entanglement and generation probability optimizations yet with negligible absorption. The scheme could also be adapted to photonic and solid interfaces.
引用
收藏
页数：7
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