A scheme for conditional quantum phase gate via bimodal cavity and a∧-type three-level atom

作     者：蔡建武 方卯发 廖湘平 郑小娟 

作者机构：College of Physics and Information Science Hunan Normal University Changsha 410081 China Department of Physics Science and Electronics Zhuzhou Teacher' College Zhuzhou 412007 China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2006年第15卷第11期

页      面：2518-2522页

核心收录：

学科分类：07[理学] 070201[理学-理论物理] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China (Grant No 10374025) 

主　　题：quantum phase gate ∧-type three-level atom bimodal cavity fidelity 

摘      要：We propose a scheme to implement a two-qubit conditional quantum phase gate for the intracavity field via a single three-level ∧-type atom driven by two modes in a high-Q cavity. The quantum inforraation is encoded on the Fock states of the bimodal cavity. The gate＇s averaged fidelity is expected to reach 99.8%.