Metric Independence of Vacuum and Force-Free Electromagnetic Fields.
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DOI: 10.1103/physrevlett.118.141101
Abstract: Electromagnetic fields which solve the vacuum Maxwell equations in one spacetime are well known to also be solutions in all spacetimes with conformally related metrics. This provides a sense in which electromagnetism alone cannot be… read more here.
Keywords: force free; electromagnetic fields; geometry; vacuum ... See more keywords