Inflationary magnetogenesis with helical coupling

2019/11/23 by Yu. V. Shtanov, M. V. Pavliuk · 1 citation
Physics and Astronomy · #astro-ph.CO #gr-qc #hep-ph

paper · pdf · doi:10.15407/ujpe64.11.1009

published as Ukr. J. Phys. 64, No. 11, pp. 1009-1013 (2019) · 5 pages, 1 figure. This work is based on the results presented at the XI Bolyai-Gauss-Lobachevskii (BGL-2019) Conference: Non-Euclidean, Noncommutative Geometry and Quantum Physics, Kiev, May 19-24. Compared to arXiv:1902.05894, a smooth analytic interpolating coupling function is used with an exact solution

arxiv created 2019/11/23 · arxiv updated 2019/12/02

Abstract

We describe a simple scenario of inflationary magnetogenesis based on a helical coupling to electromagnetism. It allows to generate helical magnetic fields of strength of order up to 10^{- 7} G, when extrapolated to the current epoch, in a narrow spectral band centered at any physical wavenumber by adjusting the model parameters. Additional constraints on magnetic fields arise from the considerations of baryogenesis and, possibly, from the Schwinger effect of creation of charged particle-antiparticle pairs.

Citations

• Viable inflationary magnetogenesis with helical coupling

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