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Galvano-rotational effect induced by electroweak interactions in pulsars M. Dvornikov

By: Dvornikov, Maxim SContributor(s): Томский государственный университет Физический факультет Научные подразделения ФФMaterial type: ArticleArticleSubject(s): магнитные поля | гравитация | нейтроныGenre/Form: статьи в журналах Online resources: Click here to access online In: Journal of cosmology and astroparticle physics № 5. P. 037 (1-17)Abstract: We study electroweakly interacting particles in rotating matter. The existence of the electric current along the axis of the matter rotation is predicted in this system. This new galvano-rotational effect is caused by the parity violating interaction between massless charged particles in the rotating matter. We start with the exact solution of the Dirac equation for a fermion involved in the electroweak interaction in the rotating frame. This equation includes the noninertial effects. Then, using the obtained solution, we derive the induced electric current which turns out to flow along the rotation axis. We study the possibility of the appearance of the galvano-rotational effect in dense matter of compact astrophysical objects. The particular example of neutron and hypothetical quark stars is discussed. It is shown that, using this effect, one can expect the generation of toroidal magnetic fields comparable with poloidal ones in old millisecond pulsars. We also briefly discuss the generation of the magnetic helicity in these stars. Finally we analyze the possibility to apply the galvano-rotational effect for the description of the asymmetric neutrino emission from a neutron star to explain pulsars kicks.
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We study electroweakly interacting particles in rotating matter. The existence of the electric current along the axis of the matter rotation is predicted in this system. This new galvano-rotational effect is caused by the parity violating interaction between massless charged particles in the rotating matter. We start with the exact solution of the Dirac equation for a fermion involved in the electroweak interaction in the rotating frame. This equation includes the noninertial effects. Then, using the obtained solution, we derive the induced electric current which turns out to flow along the rotation axis. We study the possibility of the appearance of the galvano-rotational effect in dense matter of compact astrophysical
objects. The particular example of neutron and hypothetical quark stars is discussed. It
is shown that, using this effect, one can expect the generation of toroidal magnetic fields
comparable with poloidal ones in old millisecond pulsars. We also briefly discuss the generation of the magnetic helicity in these stars. Finally we analyze the possibility to apply
the galvano-rotational effect for the description of the asymmetric neutrino emission from a
neutron star to explain pulsars kicks.

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