Single-Photon Transistor Mediated by Interstate Rydberg Interactions

被引：288

作者：

Gorniaczyk, H. ^{[1
]}

Tresp, C. ^{[1
]}

Schmidt, J. ^{[1
]}

Fedder, H. ^{[2
]}

Hofferberth, S. ^{[1
]}

机构：

[1] Univ Stuttgart, Phys Inst 5, D-70569 Stuttgart, Germany

[2] Univ Stuttgart, Inst Phys 3, D-70569 Stuttgart, Germany

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 05期

关键词：

QUANTUM-DOT; INDUCED TRANSPARENCY; OPTICS; INFORMATION; CAVITY; ATOMS;

D O I：

10.1103/PhysRevLett.113.053601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the realization of an all-optical transistor by mapping gate and source photons into strongly interacting Rydberg excitations with different principal quantum numbers in an ultracold atomic ensemble. We obtain a record switch contrast of 40% for a coherent gate input with mean photon number one and demonstrate attenuation of source transmission by over ten photons with a single gate photon. We use our optical transistor to demonstrate the nondestructive detection of a single Rydberg atom with a fidelity of 0.72(4).

引用

页数：5

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