Inflationary dynamics of kinetically-coupled gauge fields

@article{Ferreira2014InflationaryDO,
  title={Inflationary dynamics of kinetically-coupled gauge fields},
  author={Ricardo Z. Ferreira and Jonathan Ganc},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2014},
  volume={2015},
  pages={029 - 029}
}
We investigate the inflationary dynamics of two kinetically-coupled massless U(1) gauge fields with time-varying kinetic-term coefficients. Ensuring that the system does not have strongly coupled regimes shrinks the parameter space. Also, we further restrict ourselves to systems that can be quantized using the standard creation, annihilation operator algebra. This second constraint limits us to scenarios where the system can be diagonalized into the sum of two decoupled, massless, vector fields… 
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