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 p...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.展开更多
Multi-service SDH networks support both packet- and circuit-switched traffic. Optimal design of such a network means to guarantee the circuit connections and configure a logical packet-switched topology with lowest co...Multi-service SDH networks support both packet- and circuit-switched traffic. Optimal design of such a network means to guarantee the circuit connections and configure a logical packet-switched topology with lowest congestion. This letter first formulates the problem as a mixed integer linear programming, which achieves optimal solution but has high computation. Then a heuristic algorithm is proposed to yield near-optimal solution efficiently. Performance of the algorithm is verified by an example.展开更多
Y90-62009-435 0003912互补输出开关逻辑:以微波频率工作的超导稳压逻辑系列=Complementary output switching logic:a super-conducting voltage-state logic family operating at mi-crowave frequency[会,英]/Perold,w.J.//Proceedin...Y90-62009-435 0003912互补输出开关逻辑:以微波频率工作的超导稳压逻辑系列=Complementary output switching logic:a super-conducting voltage-state logic family operating at mi-crowave frequency[会,英]/Perold,w.J.//Proceedingsof the 1998 South African Symposium on Communjca-tions and Signal Processing(COMSIG’98).—435～440(PC)Y90-62009-445 0003913窄带与宽带系统用的电子数据表互调图表=A spread-sheet intermodulation chart for narroband and widebandsystems[会,英]/van der walt,P.W.//Proceedings ofthe 1998 South Afrtcan Symposium on Communicationsand Signal Processing(COMSIG’98).—445～450(PC)展开更多
基金supported by the National Natural Science Foundation of China under Grant No. 60433050the Science Foundation of Xuzhou Normal University under Grant No. 06XLA05
文摘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.
文摘Multi-service SDH networks support both packet- and circuit-switched traffic. Optimal design of such a network means to guarantee the circuit connections and configure a logical packet-switched topology with lowest congestion. This letter first formulates the problem as a mixed integer linear programming, which achieves optimal solution but has high computation. Then a heuristic algorithm is proposed to yield near-optimal solution efficiently. Performance of the algorithm is verified by an example.
文摘Y90-62009-435 0003912互补输出开关逻辑:以微波频率工作的超导稳压逻辑系列=Complementary output switching logic:a super-conducting voltage-state logic family operating at mi-crowave frequency[会,英]/Perold,w.J.//Proceedingsof the 1998 South African Symposium on Communjca-tions and Signal Processing(COMSIG’98).—435～440(PC)Y90-62009-445 0003913窄带与宽带系统用的电子数据表互调图表=A spread-sheet intermodulation chart for narroband and widebandsystems[会,英]/van der walt,P.W.//Proceedings ofthe 1998 South Afrtcan Symposium on Communicationsand Signal Processing(COMSIG’98).—445～450(PC)
