KMS Of Academy of mathematics and systems sciences, CAS
Explicit symplectic algorithms based on generating functions for relativistic charged particle dynamics in time-dependent electromagnetic field | |
Zhang, Ruili1; Wang, Yulei2,3,4; He, Yang5; Xiao, Jianyuan2,3,4; Liu, Jian2,3,4; Qin, Hong2,3,6; Tang, Yifa7 | |
2018-02-01 | |
发表期刊 | PHYSICS OF PLASMAS |
ISSN | 1070-664X |
卷号 | 25期号:2页码:7 |
摘要 | Relativistic dynamics of a charged particle in time-dependent electromagnetic fields has theoretical significance and a wide range of applications. The numerical simulation of relativistic dynamics is often multi-scale and requires accurate long-term numerical simulations. Therefore, explicit symplectic algorithms are much more preferable than non-symplectic methods and implicit symplectic algorithms. In this paper, we employ the proper time and express the Hamiltonian as the sum of exactly solvable terms and product-separable terms in space-time coordinates. Then, we give the explicit symplectic algorithms based on the generating functions of orders 2 and 3 for relativistic dynamics of a charged particle. The methodology is not new, which has been applied to non-relativistic dynamics of charged particles, but the algorithm for relativistic dynamics has much significance in practical simulations, such as the secular simulation of runaway electrons in tokamaks. Published by AIP Publishing. |
DOI | 10.1063/1.5012767 |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[NSFC-11505186] ; National Natural Science Foundation of China[11575185] ; National Natural Science Foundation of China[11575186] ; National Natural Science Foundation of China[11771438] ; ITER-China Program[2015GB111003] ; ITER-China Program[2014GB124005] ; Fundamental Research Funds for the Central Universities[2017RC033] ; JSPS-NRF-NSFC[NSFC-11261140328] ; Key Research Program of Frontier Sciences CAS[QYZDB-SSW-SYS004] ; Geo-Algorithmic Plasma Simulator (GAPS) Project |
WOS研究方向 | Physics |
WOS类目 | Physics, Fluids & Plasmas |
WOS记录号 | WOS:000426584700021 |
出版者 | AMER INST PHYSICS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.amss.ac.cn/handle/2S8OKBNM/29782 |
专题 | 计算数学与科学工程计算研究所 |
通讯作者 | Qin, Hong |
作者单位 | 1.Beijing Jiaotong Univ, Sch Sci, Beijing 100044, Peoples R China 2.Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China 3.Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei 230026, Anhui, Peoples R China 4.Chinese Acad Sci, Key Lab Geospace Environm, Hefei 230026, Anhui, Peoples R China 5.Univ Sci & Technol Beijing, Sch Math & Phys, Beijing 100083, Peoples R China 6.Princeton Univ, Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA 7.Chinese Acad Sci, Acad Math & Syst Sci, LSEC, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Ruili,Wang, Yulei,He, Yang,et al. Explicit symplectic algorithms based on generating functions for relativistic charged particle dynamics in time-dependent electromagnetic field[J]. PHYSICS OF PLASMAS,2018,25(2):7. |
APA | Zhang, Ruili.,Wang, Yulei.,He, Yang.,Xiao, Jianyuan.,Liu, Jian.,...&Tang, Yifa.(2018).Explicit symplectic algorithms based on generating functions for relativistic charged particle dynamics in time-dependent electromagnetic field.PHYSICS OF PLASMAS,25(2),7. |
MLA | Zhang, Ruili,et al."Explicit symplectic algorithms based on generating functions for relativistic charged particle dynamics in time-dependent electromagnetic field".PHYSICS OF PLASMAS 25.2(2018):7. |
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