Preparation of N-Qubit GHZ State with a Hybrid Quantum System Based on Nitrogen-Vacancy Centers  

作　　者：ZHAO Yu-Jing FANG Xi-Ming ZHOU Fang SONG Ke-Hui 赵宇靖;方细明;周方;宋克慧(Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education,and Department of Physics,Hunan Normal University,Changsha 410081;College of Zhangjiajie,Jishou University,Zhangjiajie 427000;Department of Physics and Information Engineering,Huaihua University,Huaihua 418008)

机构地区：[1]Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education,and Department of Physics,Hunan Normal University,Changsha 410081 [2]College of Zhangjiajie,Jishou University,Zhangjiajie 427000 [3]Department of Physics and Information Engineering,Huaihua University,Huaihua 418008

出　　处：《Chinese Physics Letters》2013年第5期14-17,共4页中国物理快报（英文版）

基　　金：the National Natural Science Foundation of China under Grant Nos 11174100 and 11275064;the Program for Changjiang Scholars and Innovative Research Team in University under Grant No IRT0964.

摘　　要：We propose a novel scheme for generating N-qubit GHZ entangled state with a hybrid quantum system,which consists of N nitrogen-vacancy centers,N transmission line resonators,a current-biased Josephson junction superconducting qubit,and three kinds of interaction Hamiltonians.The proposal requires no adjustment of the qubit level spacings during the entire operation.Moreover,it is shown that the operation time is independent of the number of qubits.The present proposal is quite useful,and is a promising step to realize the large-sized quantum networks for quantum information processing and quantum computation.

关 键 词：QUANTUM GENERATING sized 

分 类 号：O41[理学—理论物理]