Entanglement of Two Individual Neutral Atoms Using Rydberg Blockade

被引：561

作者：

Wilk, T. ^{[1
]}

Gaetan, A. ^{[1
]}

Evellin, C. ^{[1
]}

Wolters, J. ^{[1
]}

Miroshnychenko, Y. ^{[1
]}

Grangier, P. ^{[1
]}

Browaeys, A. ^{[1
]}

机构：

[1] Univ Paris Sud, Lab Charles Fabry, Inst Opt, CNRS, F-91127 Palaiseau, France

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 01期

关键词：

EXCITATION; PAIRS; IONS;

D O I：

10.1103/PhysRevLett.104.010502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the generation of entanglement between two individual (87)Rb atoms in hyperfine ground states vertical bar F = 1, M = 1 > and vertical bar F = 2, M = 2 > which are held in two optical tweezers separated by 4 mu m. Our scheme relies on the Rydberg blockade effect which prevents the simultaneous excitation of the two atoms to a Rydberg state. The entangled state is generated in about 200 ns using pulsed two-photon excitation. We quantify the entanglement by applying global Raman rotations on both atoms. We measure that 61% of the initial pairs of atoms are still present at the end of the entangling sequence. These pairs are in the target entangled state with a fidelity of 0.75.

引用

页数：4

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