Galvano-rotational effect induced by electroweak interactions in pulsars

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.

18 pages in JCAP LaTeX style, 2 tables, 1 eps figure, paper is significantly revised, title is slightly changed, new sec. 6, devoted to pulsar kicks, and new appendix are added, several new references are included, some misprints are corrected, version to be published in JCAP

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Cited by in corpus (9)

• Neutrino spin oscillations in external fields in curved spacetime
• Neutrino interaction with background matter in a noninertial frame
• Noninertial effects on nonrelativistic topological quantum scattering
• Some aspects of an induced electric dipole moment in rotating and nonrotating frames
• Magnetic fields in turbulent quark matter and magnetar bursts
• Unruh effect for neutrinos interacting with accelerated matter
• Neutrino induced vorticity, Alfven waves and the normal modes
• Chiral magnetic effect in the presence of electroweak interactions as a quasiclassical phenomenon
• Magnetic helicity in rotating neutron stars