Experimental free-space distribution of entangled photon pairs over 13 km: Towards satellite-based global quantum communication

被引：228

作者：

Peng, CZ ^{[1
]}

Yang, T

Bao, XH

Zhang, J

Jin, XM

Feng, FY

Yang, B

Yang, J

Yin, J

Zhang, Q

Li, N

Tian, BL

Pan, JW

机构：

[1] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China

[3] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.94.150501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report free-space distribution of entangled photon pairs over a noisy ground atmosphere of 13 km. It is shown that the desired entanglement can still survive after both entangled photons have passed through the noisy ground atmosphere with a distance beyond the effective thickness of the aerosphere. This is confirmed by observing a spacelike separated violation of Bell inequality of 2.45 +/- 0.09. On this basis, we exploit the distributed entangled photon source to demonstrate the Bennett-Brassard 1984 quantum cryptography scheme. The distribution distance of entangled photon pairs achieved in the experiment is for the first time well beyond the effective thickness of the aerosphere, hence presenting a significant step towards satellite-based global quantum communication.

引用

页数：4

共 24 条

[1] EXPERIMENTAL TEST OF BELL INEQUALITIES USING TIME-VARYING ANALYZERS [J].

ASPECT, A ;

DALIBARD, J ;

ROGER, G .

PHYSICAL REVIEW LETTERS, 1982, 49 (25) :1804-1807

[2]

Aspelmeyer M, 2003, IEEE J SEL TOP QUANT, V9, P1541, DOI [10.1109/JSTQE.2003.820918, 10.1109/jstqe.2003.820918]

[3] Long-distance free-space distribution of quantum entanglement [J].

Aspelmeyer, M ;

Böhm, HR ;

Gyatso, T ;

Jennewein, T ;

Kaltenbaek, R ;

Lindenthal, M ;

Molina-Terriza, G ;

Poppe, A ;

Resch, K ;

Taraba, M ;

Ursin, R ;

Walther, P ;

Zeilinger, A .

SCIENCE, 2003, 301 (5633) :621-623

[4]

Bennett C.H., 1984, P IEEE INT C COMP SY, P175, DOI DOI 10.1016/J.TCS.2014.05.025

[5] TELEPORTING AN UNKNOWN QUANTUM STATE VIA DUAL CLASSICAL AND EINSTEIN-PODOLSKY-ROSEN CHANNELS [J].

BENNETT, CH ;

BRASSARD, G ;

CREPEAU, C ;

JOZSA, R ;

PERES, A ;

WOOTTERS, WK .

PHYSICAL REVIEW LETTERS, 1993, 70 (13) :1895-1899

[6] Purification of noisy entanglement and faithful teleportation via noisy channels [J].

Bennett, CH ;

Brassard, G ;

Popescu, S ;

Schumacher, B ;

Smolin, JA ;

Wootters, WK .

PHYSICAL REVIEW LETTERS, 1996, 76 (05) :722-725

[7] Quantum repeaters:: The role of imperfect local operations in quantum communication [J].

Briegel, HJ ;

Dür, W ;

Cirac, JI ;

Zoller, P .

PHYSICAL REVIEW LETTERS, 1998, 81 (26) :5932-5935

[8] PROPOSED EXPERIMENT TO TEST LOCAL HIDDEN-VARIABLE THEORIES [J].

CLAUSER, JF ;

HORNE, MA ;

SHIMONY, A ;

HOLT, RA .

PHYSICAL REVIEW LETTERS, 1969, 23 (15) :880-&

[9] Long distance quantum teleportation in a quantum relay configuration [J].

de Riedmatten, H ;

Marcikic, I ;

Tittel, W ;

Zbinden, H ;

Collins, D ;

Gisin, N .

PHYSICAL REVIEW LETTERS, 2004, 92 (04) :4

[10] QUANTUM CRYPTOGRAPHY BASED ON BELL THEOREM [J].

EKERT, AK .

PHYSICAL REVIEW LETTERS, 1991, 67 (06) :661-663

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