Implementation of a multiqubit quantum phase gate in a neutral atomic ensemble via the asymmetric Rydberg blockade

被引：69
|
作者：
Wu, Huai-Zhi
Yang, Zhen-Biao
Zheng, Shi-Biao [1 ]
机构：
[1] Fuzhou Univ, Dept Phys, Fuzhou 350002, Peoples R China
来源：
PHYSICAL REVIEW A | 2010年 / 82卷 / 03期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1103/PhysRevA.82.034307
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report a scheme for implementing a multiqubit quantum phase gate in a neutral atomic ensemble via an asymmetric Rydberg blockade. The multiqubit gate is successfully realized by following a three-step approach. The neutral-atom qubits are always illuminated by the common laser beams and therefore individual addressing of the atoms is not required. The gate errors induced by atomic spontaneous emission, imperfect excitation blockade, and atomic motion are discussed.
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页数：4
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