Experimental investigation of the robustness of partially entangled qubits over 11 km

被引：92

作者：

Thew, RT ^{[1
]}

Tanzilli, S

Tittel, W

Zbinden, H

Gisin, N

机构：

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

[2] Univ Nice, Phys Mat Condensee Lab, CNRS UMR 6622, F-06108 Nice 2, France

[3] Univ Aarhus, Inst Phys & Astron, Danish Quantum Opt Ctr, DK-8000 Aarhus C, Denmark

来源：

PHYSICAL REVIEW A | 2002年 / 66卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.66.062304

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally investigate time-bin qubits for distributed quantum communication. The robustness of maximal and nonmaximal time-bin entangled qubits (photons) over distances up to 11 km is shown. The entanglement is set by controllable parameters and in all cases is found to be robust, in that the qubits maintain their degree of entanglement after transmission along telecommunication fiber.

引用

页数：5

共 26 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]

Bell J. S, 1987, SPEAKABLE UNSPEAKABL

[3] 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

[4] Experimental realization of teleporting an unknown pure quantum state via dual classical and Einstein-Podolsky-Rosen channels [J].

Boschi, D ;

Branca, S ;

De Martini, F ;

Hardy, L ;

Popescu, S .

PHYSICAL REVIEW LETTERS, 1998, 80 (06) :1121-1125

[5] Experimental quantum teleportation [J].

Bouwmeester, D ;

Pan, JW ;

Mattle, K ;

Eibl, M ;

Weinfurter, H ;

Zeilinger, A .

NATURE, 1997, 390 (6660) :575-579

[6] Pulsed energy-time enangled twin-photon source for quantum communication [J].

Brendel, J ;

Gisin, N ;

Tittel, W ;

Zbinden, H .

PHYSICAL REVIEW LETTERS, 1999, 82 (12) :2594-2597

[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] Quantum state transfer and entanglement distribution among distant nodes in a quantum network [J].

Cirac, JI ;

Zoller, P ;

Kimble, HJ ;

Mabuchi, H .

PHYSICAL REVIEW LETTERS, 1997, 78 (16) :3221-3224

[9]

EINSTEIN A, 1935, PHYS REV LETT, V47, P1215

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

EKERT, AK .

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

← 1 2 3 →