Realization of Two-Qutrit Quantum Gates with Control Pulses

作     者：ZHANG Jie DI Yao-Min WEI Hai-Rui 

作者机构：School of Physics ＆ Electronic Engineering Xuzhou Normal University Xuzhou 221116 China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2009年第51卷第4期

页      面：653-658页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 070207[理学-光学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 081105[工学-导航、制导与控制] 081001[工学-通信与信息系统] 081002[工学-信号与信息处理] 0825[工学-航空宇航科学与技术] 0811[工学-控制科学与工程] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China under Grant No. 60433050 the Science Foundation of Xuzhou Normal University under Grant No. 06XLA05 

主　　题：Caftan decomposition 2-qutrit system ternary SWAP gate ternary √SWAP gate 

摘      要：We investigate the realization of 2-qutrit logic gate in a bipartite 3-level system with qusi-Ising interaction. On the basis of Caftan decomposition of matrices, the unitary matrices of 2-qutrit are factorized into products of a series of realizable matrices. It is equivalent to exerting a certain control field on the system, and the control goal is usually gained by a sequence of control pulses. The general discussion on the realization of 2-qutrit logic gate is made first, and then the realization of the ternary SWAP gate and the ternary √SWAP gate are discussed specifically, and the sequences of control pulses and drift processes implementing these gates are given.