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- 저자 : Yin Zihan (검색결과 2 건)
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A Cooperative Coevolution Algorithm Based on ABC and NMSM
Hongsheng Su,Kaile Yin,Zihan Wu 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.12
Considering that the existing artificial bee colony (ABC) algorithm can not give simultaneously attention to evolution speed and solution quality, an improved ABC algorithm is proposed based on nelder-mead simplex method (NMSM) in this paper, and defined ad NMSM-ABC. In the process of iteration, the algorithm periodically passes the best individual vertex from NMSM operator into ABC, or migrates the optimal food source information from ABC to NMSM can get away from local minimum with aid of ABC. Hence, the proposed algorithm can realize cooperative co-evolution of the two so that the desired properties are obtained. In addition, the sensitivity analysis of the key parameter of NMSM-ABC is also conducted and the best value is suggested. Finally, Numerical experiments and comparisons on 6 benchmark functions are conducted with other ABC algorithms, and the results indicate that the proposed algorithm effectively overcomes the local minimum, and dramatically enhances the global searching ability and convergence speed, and is a good cooperative co-evolution algorithm.
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Entangling gates for trapped-ion quantum computation and quantum simulation
Cai Zhengyang,Luan Chun -Yang,Ou Lingfeng,Tu Hengchao,Yin Zihan,Zhang Jing -Ning,Kim Kihwan 한국물리학회 2023 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.82 No.9
The trapped-ion system has been a leading platform for practical quantum computation and quantum simulation since the frst scheme of a quantum gate was proposed by Cirac and Zoller (Phys Rev Lett 74:4091, 1995). Quantum gates with trapped ions have shown the highest fdelity among all physical platforms. Recently, sophisticated schemes of quantum gates such as amplitude, phase, frequency modulation, or multi-frequency application, have been developed to make the gates fast, robust to many types of imperfections, and applicable to multiple qubits. Here, we review the basic principle and recent development of quantum gates with trapped ions.
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