Power-law modulation of the scalar power spectrum from a heavy field with a monomial potential

  title={Power-law modulation of the scalar power spectrum from a heavy field with a monomial potential},
  author={Qing Guo Huang and Shi Pi},
  journal={Journal of Cosmology and Astroparticle Physics},
  • Q. Huang, Shi Pi
  • Published 1 October 2016
  • Physics
  • Journal of Cosmology and Astroparticle Physics
The effects of heavy fields modulate the scalar power spectrum during inflation. We analytically calculate the modulations of the scalar power spectrum from a heavy field with a separable monomial potential, i.e. V(\phi)~\phi^n. In general the modulation is characterized by a power-law oscillation which is reduced to the logarithmic oscillation in the case of n=2. 

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