IPM
30
YEARS OLD

## “School of Astronomy”

Paper   IPM / Astronomy / 11371
School of Astronomy
Title: Inflation from Charged Scalar and Primordial Magnetic Fields?
Author(s):
 1 . R. Emami 2 . H. Firouzjahi 3 . M. S.. Movahed
Status: Published
Journal: Phys. Rev. D
Vol.: 81
Year: 2010
Pages: 083526
Supported by: IPM
Abstract:
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.

Download TeX format
back to top
scroll left or right