Efficient scheme of quantum SWAP gate and multi-atom cluster state via cavity QED

被引：0

作者：

姜春蕾 ^{[1
]}

方卯发 ^{[1
]}

胡要花 ^{[1
]}

机构：

[1] College of Physics and Information Science, Hunan Normal University

来源：

Chinese Physics B | 2008年 / 01期

基金：

中国国家自然科学基金;

关键词：

cluster states; SWAP gate; cavity QED;

D O I：

暂无

中图分类号：

O431.2 [量子光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we propose a physical scheme to realize quantum SWAP gate by using a large-detuned single-mode cavity field and two identical Rydberg atoms. It is shown that the scheme can also be used to create multi-atom cluster state. During the interaction between atom and cavity, the cavity is only virtually excited and thus the scheme is insensitive to the cavity field states and cavity decay. With the help of our scheme it is very simple to prepare the N-atom cluster state with perfect fidelity and probability. The practical feasibility of this method is also discussed.

引用

页码：190 / 193

页数：4