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Paper detail

Inflation from Charged Scalar and Primordial Magnetic Fields?

A model of inflation is presented where the inflaton field is a complex scalar field coupled to a U(1) gauge field. Due to the axial symmetry of the potential, the inflation is driven by the radial direction while the angular field is gauged by U(1). Due to the coupling of the inflaton to the gauge field, a time dependent mass term for the gauge field is generated dynamically and conformal invariance is broken. We study whether a significant amount of primordial magnetic fields can be generated during inflation by allowing a time-dependent U(1) gauge kinetic coupling.

preprint2010arXivOpen access
Razieh EmamiHassan FirouzjahiM. Sadegh Movahed
astro-ph.COhep-phhep-th
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Razieh EmamiHassan FirouzjahiM. Sadegh Movahed

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