Local blockade of Rydberg excitation in an ultracold gas -: art. no. 063001

被引：520

作者：

Tong, D ^{[1
]}

Farooqi, SM ^{[1
]}

Stanojevic, J ^{[1
]}

Krishnan, S ^{[1
]}

Zhang, YP ^{[1
]}

Côté, R ^{[1
]}

Eyler, EE ^{[1
]}

Gould, PL ^{[1
]}

机构：

[1] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.93.063001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the laser excitation of ultracold atoms to Rydberg states, we observe a dramatic suppression caused by van der Waals interactions. This behavior is interpreted as a local excitation blockade: Rydberg atoms strongly inhibit excitation of their neighbors. We measure suppression, relative to isolated atom excitation, by up to a factor of 6.4. The dependences of this suppression on both laser irradiance and atomic density are in good agreement with a mean-field model. These results are an important step towards using ultracold Rydberg atoms in quantum information processing.

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页码：063001 / 1

页数：4

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