A QUASI-FORCE-FREE SUPERCONDUCTING TOROIDAL MAGNET ACHIEVING "SHORT-SAMPLE" PERFORMANCE

作     者：毕延芳 严陆光 BI YANFANG(Graduate School,University of Science and Technology of China, Beijing) YAN LUGUANG (Institute of Electrical Engineering, Academia Sinica, Beijing)

作者机构：Graduate SchoolUniversity of Science and Technology of China Beijing Institute of Electrical Engineering Academia Sinica Beijinghe force-free magnets are those in which the current density J is everywhere parallel to the field H i.e. J=αH where a is a scale function called force-free factor or function.Therefore the Lorentz force f is equal to zero since f=μJ×H=0.However from the virial theorem of mechanics it can be verified that 

出 版 物：《Chinese Science Bulletin》 (科学通报(英文版))

年 卷 期：1983年第28卷第8期

页      面：1035-1042页

学科分类：07[理学] 0702[理学-物理学] 

主　　题：Lorentz magnet everywhere verified arrange stored quasi maximal winding citation 

摘      要：The force-free magnets are those in which the current density J is everywhere parallel to the field H, i.e. J=αH, where a is a scale function called force-free factor or *** the Lorentz force f is equal to zero, since f=μJ×H=***, from the virial theorem of mechanics it can be verified