东篱科研大数据发现系统（DRDS）

位置：成果数据库 > 期刊 > 期刊详情页

Implementation of a nonlocal N-qubit conditional phase gate using the nitrogen-vacancy center and microtoroidal resonator coupled systems

ISSN号：1674-1056
期刊名称：《中国物理B：英文版》
时间：0
分类：TN248.1[电子电信—物理电子学] TP38[自动化与计算机技术—计算机系统结构;自动化与计算机技术—计算机科学与技术]
作者机构：[1]school of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China, [2]state Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beifing 100876, China, [3]School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
相关基金：Project supported by the National Fundamental Research Program of China （Grant No. 2010CB923202）, the Fundamental Research Funds for the Central Universities, China, and the National Natural Science Foundation of China （Grant Nos. 61177085, 61205117, and 61377097）.

作者：曹聪[1], 刘刚[3], 张茹[1,2], 王川[1,2]

关键词：量子比特, 耦合系统, 谐振器, 相位, 空位, 非局部, 量子信息处理, 腔量子电动力学, N-qubit conditional phase gate, nitrogen-vacancy center, microtoroidal resonator

中文摘要：

Implementation of a nonlocal multi-qubit conditional phase gate is an essential requirement in some quantum information processing(QIP) tasks. Recently, a novel solid-state cavity quantum electrodynamics(QED) system, in which the nitrogen–vacancy(NV) center in diamond is coupled to a microtoroidal resonator(MTR), has been proposed as a potential system for hybrid quantum information and computing. By virtue of such systems, we present a scheme to realize a nonlocal N-qubit conditional phase gate directly. Our scheme employs a cavity input–output process and single-photon interference, without the use of any auxiliary entanglement pair or classical communication. Considering the currently available technologies, our scheme might be quite useful among different nodes in quantum networks for large-scaled QIP.

英文摘要：

Implementation of a nonlocal multi-qubit conditional phase gate is an essential requirement in some quantum infor- mation processing （QIP） tasks. Recently, a novel solid-state cavity quantum electrodynamics （QED） system, in which the nitrogen-vacancy （NV） center in diamond is coupled to a microtoroidal resonator （MTR）, has been proposed as a poten- tial system for hybrid quantum information and computing. By virtue of such systems, we present a scheme to realize a nonlocal N-qubit conditional phase gate directly. Our scheme employs a cavity input-output process and single-photon interference, without the use of any auxiliary entanglement pair or classical communication. Considering the currently available technologies, our scheme might be quite useful among different nodes in quantum networks for large-scaled QIP.