Hybrid Long-Distance Entanglement Distribution Protocol

被引：93

作者：

Brask, J. B. ^{[1
]}

Rigas, I. ^{[2
]}

Polzik, E. S. ^{[1
]}

Andersen, U. L. ^{[3
]}

Sorensen, A. S. ^{[1
]}

机构：

[1] Univ Copenhagen, QUANTOP, Niels Bohr Inst, DK-2100 Copenhagen O, Denmark

[2] Univ Complutense Madrid, Dept Opt, Fac Fis, E-28040 Madrid, Spain

[3] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 16期

关键词：

QUANTUM COMMUNICATION; LINEAR OPTICS; STATES; TELEPORTATION; INFORMATION; REPEATERS; VARIABLES;

D O I：

10.1103/PhysRevLett.105.160501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose a hybrid (continuous-discrete variable) quantum repeater protocol for long-distance entanglement distribution. Starting from states created by single-photon detection, we show how entangled coherent state superpositions can be generated by means of homodyne detection. We show that near-deterministic entanglement swapping with such states is possible using only linear optics and homodyne detectors, and we evaluate the performance of our protocol combining these elements.

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页数：4

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