Observation of entanglement of a single photon with a trapped atom

被引：265

作者：

Volz, J ^{[1
]}

Weber, M

Schlenk, D

Rosenfeld, W

Vrana, J

Saucke, K

Kurtsiefer, C

Weinfurter, H

机构：

[1] Univ Munich, Dept Phys, D-80799 Munich, Germany

[2] Natl Univ Singapore, Dept Phys, Singapore 117548, Singapore

[3] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.96.030404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the observation of entanglement between a single trapped atom and a single photon at a wavelength suitable for low-loss communication over large distances, thereby achieving a crucial step towards long range quantum networks. To verify the entanglement, we introduce a single atom state analysis. This technique is used for full state tomography of the atom-photon qubit pair. The detection efficiency and the entanglement fidelity are high enough to allow in a next step the generation of entangled atoms at large distances, ready for a final loophole-free Bell experiment.

引用

页数：4

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