Preparation of cluster state in large detuned cavity
Zou Chang-Lin(邹长林)a)†, Gao Guo-Jun(高国军)a)b), Lu Yan(卢艳)a), Li Da-Chuang(李大创)a), Yang Ming(杨名)a), and Cao Zhuo-Liang(曹卓良)a)‡
a Key Laboratory of Opto-electronic Information Acquisition and Manipulation, Ministry of Education, Physics and Material Science, Anhui University, Hefei 230039, China; b School of Mathematics & Physics, Jiangsu University of Science and Technology, Zhenjiang 212003, China
Abstract An experimentally realizable physical scheme for preparing multiqubit cluster states from a large detuned atom--cavity interaction is proposed. The scheme is free of any type of measurement and insensitive to the cavity decay, and the cavity field is only virtually excited so that there is no information exchanging between atom and cavity. The time required for the gate operations is very short, which is important for decoherence. We also discuss the experimental feasibility of our scheme.
Received: 06 June 2007
Revised: 22 October 2007
Accepted manuscript online:
PACS:
03.65.Ta
(Foundations of quantum mechanics; measurement theory)
Fund: Project
supported by the National Natural Science Foundation of China (Grant
No 60678022), the Doctoral Fund of the state Education Commission of
China (Grant No 20060357008), Anhui Provincial Natural Science
Foundation (Grant No 070412060), the Key Progr
Cite this article:
Zou Chang-Lin(邹长林), Gao Guo-Jun(高国军), Lu Yan(卢艳), Li Da-Chuang(李大创), Yang Ming(杨名), and Cao Zhuo-Liang(曹卓良) Preparation of cluster state in large detuned cavity 2008 Chin. Phys. B 17 1174
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