Breaking the Dipole Blockade: Nearly Resonant Dipole Interactions in Few-Atom Systems

被引：71

作者：

Pohl, T. ^{[1
]}

Berman, P. R. ^{[2
]}

机构：

[1] Harvard Smithsonian Ctr Astrophys, ITAMP, Cambridge, MA 02138 USA

[2] Univ Michigan, Dept Phys, FOCUS Ctr, Michigan Ctr Theoret Phys, Ann Arbor, MI 48109 USA

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 01期

基金：

美国国家科学基金会;

关键词：

FROZEN RYDBERG GAS;

D O I：

10.1103/PhysRevLett.102.013004

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A dipole blockade, in which Rydberg-atom-Rydberg-atom interactions inhibit all but a single collective Rydberg excitation, has been proposed as a mechanism to store and manipulate quantum information in mesoscopic ensembles. We investigate the excitation dynamics of a collection of a few atoms and show that they undergo an unexpected, qualitative change when the number of atoms increases from two to three. In particular, the combined action of three atoms, each of which pairwise would produce a blockade, can break the dipole blockade.

引用

页数：4

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