Functional quantum nodes for entanglement distribution over scalable quantum networks

被引：298

作者：

Chou, Chin-Wen ^{[1
]}

Laurat, Julien ^{[1
]}

Deng, Hui ^{[1
]}

Choi, Kyung Soo ^{[1
]}

de Riedmatten, Hugues ^{[1
]}

Felinto, Daniel ^{[1
]}

Kimble, H. Jeff ^{[1
]}

机构：

[1] CALTECH, Norman Bridge Lab Phys 12 33, Pasadena, CA 91125 USA

来源：

SCIENCE | 2007年 / 316卷 / 5829期

关键词：

D O I：

10.1126/science.1140300

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We demonstrated entanglement distribution between two remote quantum nodes located 3 meters apart. This distribution involves the asynchronous preparation of two pairs of atomic memories and the coherent mapping of stored atomic states into light fields in an effective state of near-maximum polarization entanglement. Entanglement is verified by way of the measured violation of a Bell inequality, and it can be used for communication protocols such as quantum cryptography. The demonstrated quantum nodes and channels can be used as segments of a quantum repeater, providing an essential tool for robust long-distance quantum communication.

引用

页码：1316 / 1320

页数：5

共 31 条

[1] Generation of paired photons with controllable waveforms [J].

Balic, V ;

Braje, DA ;

Kolchin, P ;

Yin, GY ;

Harris, SE .

PHYSICAL REVIEW LETTERS, 2005, 94 (18) :1-4

[2] Quantum interference between two single photons emitted by independently trapped atoms [J].

Beugnon, J ;

Jones, MPA ;

Dingjan, J ;

Darquié, B ;

Messin, G ;

Browaeys, A ;

Grangier, P .

NATURE, 2006, 440 (7085) :779-782

[3] Observation of entanglement between a single trapped atom and a single photon [J].

Blinov, BB ;

Moehring, DL ;

Duan, LM ;

Monroe, C .

NATURE, 2004, 428 (6979) :153-157

[4]

BOOZER AD, IN PRESS PHYS REV LE

[5] 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

[6] Storage and retrieval of single photons transmitted between remote quantum memories [J].

Chanelière, T ;

Matsukevich, DN ;

Jenkins, SD ;

Lan, SY ;

Kennedy, TAB ;

Kuzmich, A .

NATURE, 2005, 438 (7069) :833-836

[7] Deterministic and storable single-photon source based on a quantum memory [J].

Chen, Shuai ;

Chen, Yu-Ao ;

Strassel, Thorsten ;

Yuan, Zhen-Sheng ;

Zhao, Bo ;

Schmiedmayer, Joerg ;

Pan, Jian-Wei .

PHYSICAL REVIEW LETTERS, 2006, 97 (17)

[8]

CHEN ZB, IN PRESS QUANT PHYS

[9] Measurement-induced entanglement for excitation stored in remote atomic ensembles [J].

Chou, CW ;

de Riedmatten, H ;

Felinto, D ;

Polyakov, SV ;

van Enk, SJ ;

Kimble, HJ .

NATURE, 2005, 438 (7069) :828-832

[10] Single-photon generation from stored excitation in an atomic ensemble [J].

Chou, CW ;

Polyakov, SV ;

Kuzmich, A ;

Kimble, HJ .

PHYSICAL REVIEW LETTERS, 2004, 92 (21) :213601-1

← 1 2 3 4 →