Distribution of time-bin entangled qubits over 50 km of optical fiber -: art. no. 180502

被引：269

作者：

Marcikic, I ^{[1
]}

de Riedmatten, H ^{[1
]}

Tittel, W ^{[1
]}

Zbinden, H ^{[1
]}

Legré, M ^{[1
]}

Gisin, N ^{[1
]}

机构：

[1] Univ Geneva, Grp Appl Phys Opt, CH-1211 Geneva 4, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.93.180502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report experimental distribution of time-bin entangled qubits over 50 km of optical fibers. Using actively stabilized preparation and measurement devices we demonstrate violation of the Clauser-Horne-Shimony-Holt Bell inequality by more than 15 standard deviations without removing the detector noise. In addition we report a proof-of principle experiment of quantum key distribution over 50 km of optical fibers using entangled photon.

引用

页码：180502 / 1

页数：4

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