Entanglement-based quantum communication secured by nonlocal dispersion cancellation

被引：72

作者：

Lee, Catherine ^{[1
,2
]}

Zhang, Zheshen ^{[1
]}

Steinbrecher, Gregory R. ^{[1
]}

Zhou, Hongchao ^{[1
]}

Mower, Jacob ^{[1
]}

Zhong, Tian ^{[1
]}

Wang, Ligong ^{[1
]}

Hu, Xiaolong ^{[1
]}

Horansky, Robert D. ^{[3
]}

Verma, Varun B. ^{[3
]}

Lita, Adriana E. ^{[3
]}

Mirin, Richard P. ^{[3
]}

Marsili, Francesco ^{[4
]}

Shaw, Matthew D. ^{[4
]}

Nam, Sae Woo ^{[3
]}

Wornell, Gregory W. ^{[1
]}

Wong, Franco N. C. ^{[1
]}

Shapiro, Jeffrey H. ^{[1
]}

Englund, Dirk ^{[1
]}

机构：

[1] MIT, Elect Res Lab, Cambridge, MA 02139 USA

[2] Columbia Univ, Dept Phys, New York, NY 10027 USA

[3] NIST, Boulder, CO 80305 USA

[4] NASA, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

PHYSICAL REVIEW A | 2014年 / 90卷 / 06期

关键词：

KEY DISTRIBUTION; STATES; PHOTONS; CONVERSION; PROOF;

D O I：

10.1103/PhysRevA.90.062331

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Quantum key distribution (QKD) enables participants to exchange secret information over long distances with unconditional security. However, the performance of today's QKD systems is subject to hardware limitations, such as those of available nonclassical-light sources and single-photon detectors. By encoding photons in high-dimensional states, the rate of generating secure information under these technical constraints can be maximized. Here, we demonstrate a complete time-energy entanglement-based QKD system with proven security against the broad class of arbitrary collective attacks. The security of the system is based on nonlocal dispersion cancellation between two time-energy entangled photons. This resource-efficient QKD system is implemented at telecommunications wavelength, is suitable for optical fiber and free-space links, and is compatible with wavelength-division multiplexing.

引用

页数：6

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