Primordial magnetic fields from pseudo Goldstone bosons
- 15 December 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 46 (12) , 5346-5351
- https://doi.org/10.1103/physrevd.46.5346
Abstract
The existence of large-scale magnetic fields in galaxies is well established, but there is no accepted mechanism for generating a primordial field which could grow into what is observed today. We discuss a model which attempts to account for the necessary primordial field by invoking a pseudo Goldstone boson coupled to electromagnetism. The evolution of this boson during inflation generates a magnetic field; however, it seems difficult on rather general grounds to obtain fields of sufficient strength on astrophysically interesting scales.Keywords
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This publication has 3 references indexed in Scilit:
- Production of primordial magnetic field in protogalactic toriMonthly Notices of the Royal Astronomical Society, 1991
- Magnetic fields from cosmological phase transitionsPhysics Letters B, 1991
- Natural inflation with pseudo Nambu-Goldstone bosonsPhysical Review Letters, 1990