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Numerical solution of the Dirac equation with scalar,vector,and tensor potentials
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作者 Alexander Wallén Kiessling daniel karlsson +2 位作者 Yuxin Zhao Mário Bettencourt Amaro Chong Qi 《Nuclear Science and Techniques》 2025年第12期244-250,共7页
Solving the Dirac equation has played an important role in many areas of fundamental physics.In this work,we present the Dirac equation solver DiracSVT,which solves the Dirac equation with scalar,vector,and tensor nuc... Solving the Dirac equation has played an important role in many areas of fundamental physics.In this work,we present the Dirac equation solver DiracSVT,which solves the Dirac equation with scalar,vector,and tensor nuclear potentials in spherical coordinate space.The shooting method was used with a Runge–Kutta 4 integration scheme.The potentials are parameterized in a Woods–Saxon form,which reproduce well the known single-particle states around all doubly magic nuclei and can be applied to study the shell evolution of exotic nuclei.The code can be easily extended to the study of other systems,including atomic,hadron,and molecular physics. 展开更多
关键词 Dirac equation Nuclear physics SCALAR Vector and tensor potentials Shell evolution
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电压稳定——建模及系统保护方案(英文)
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作者 daniel karlsson 《电力系统自动化》 EI CSCD 北大核心 1999年第19期17-24,共8页
介绍了用于电压稳定分析的电力系统组成、系统建模及为防止电压崩溃而在瑞典安装的一个保护系统。说明了对动态负荷、有载调压变压器控制、发电机电流限制器及配电系统建立详细而精确的模型的重要性。强调了深入研究及实验的必要性。
关键词 电压稳定 负荷建模 电力系统 稳定性
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