Continuous-variable quantum key distribution using polarization encoding and post selection

被引：8

作者：

Lorenz, S

Korolkova, N

Leuchs, G

机构：

[1] Univ Erlangen Nurnberg, Max Planck Res Grp, Inst Opt Informat & Photon, D-91058 Erlangen, Germany

[2] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2004年 / 79卷 / 03期

关键词：

D O I：

10.1007/s00340-004-1574-7

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present an experimental demonstration of a quantum key distribution protocol using coherent polarization states. Post selection is used to ensure a low error rate and security against beam-splitting attacks even in the presence of high losses. Signal encoding and readout in polarization bases avoids the difficult task of sending a local oscillator with the quantum channel. This makes our setup robust and easy to implement. A shared key was established for losses up to 64%.

引用

页码：273 / 277

页数：5

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