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Effective field theory of magnetohydrodynamics from generalized global symmetries

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arxiv 1811.04879 v1 pith:P3YOHK2X submitted 2018-11-12 hep-th astro-ph.HEcond-mat.str-el

Paolo Glorioso , Dam Thanh Son This is my paper
classification hep-thastro-ph.HEcond-mat.str-el
keywords symmetrieseffectiveelectrodynamicsfreedomgeneralizedglobalmagnetohydrodynamicstheory
verification ladder T0 review T1 audit T2 compute T3 formal
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We introduce an effective action for non-dissipative magnetohydrodynamics. A crucial guiding principle is the generalized global symmetry of electrodynamics, which naturally leads to introducing a "dual photon" as the degree of freedom responsible for the electromagnetic component of the fluid. The formalism includes additional degrees of freedom and symmetries which characterize the hydrodynamic regime. By suitably enhancing one of the symmetries, the theory becomes force-free electrodynamics. The symmetries furthermore allow to systematize local and non-local conserved helicities. We also discuss higher-derivative corrections.

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Cited by 7 Pith papers

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