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Euler potentials'discontinuity in the presence of field line-aligned currents
Huang Tiansen; Wu Dejin
2012
Source PublicationChinese Science Bulletin
ISSN1001-6538
Volume57Issue:12Pages:1436
AbstractSince their use in the study of charged particle motion in the 1960s,Euler potentials(α,β)have been widely employed as magnetic field coordinates in both space plasma and fusion plasma studies.People related them to magnetic vector potential A via the relation A=α▽β subject to gauge condition A·B=0(B is the magnetic induction).For a given magnetic field,the Euler potentials are often constructed with the relation B·△ S=△α△βon a surface that crosses the field lines,where △ S is the area-element surrounding by two line-elements corresponding to the changes in α and β,then mapping the values of α and βalong field lines into space.In this short paper,we show that in the presence of field line-aligned currents,the mapping does not work and the orthogonality gauge condition is not satisfied.
Language英语
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/31589
Collection中国科学院紫金山天文台
Affiliation中国科学院紫金山天文台
First Author Affilication中国科学院紫金山天文台
Recommended Citation
GB/T 7714
Huang Tiansen,Wu Dejin. Euler potentials'discontinuity in the presence of field line-aligned currents[J]. Chinese Science Bulletin,2012,57(12):1436.
APA Huang Tiansen,&Wu Dejin.(2012).Euler potentials'discontinuity in the presence of field line-aligned currents.Chinese Science Bulletin,57(12),1436.
MLA Huang Tiansen,et al."Euler potentials'discontinuity in the presence of field line-aligned currents".Chinese Science Bulletin 57.12(2012):1436.
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