Revisiting CMB constraints on warm inflation

  title={Revisiting CMB constraints on warm inflation},
  author={Richa Arya and Arnab Dasgupta and Gaurav Goswami and Jayanti Prasad and Raghavan Rangarajan},
  journal={Journal of Cosmology and Astroparticle Physics},
  pages={043 - 043}
We revisit the constraints that Planck 2015 temperature, polarization and lensing data impose on the parameters of warm inflation. To this end, we study warm inflation driven by a single scalar field with a quartic self interaction potential in the weak dissipative regime. We analyse the effect of the parameters of warm inflation, namely, the inflaton self coupling λ and the inflaton dissipation parameter QP on the CMB angular power spectrum. We constrain λ and QP for 50 and 60 number of e… 

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  • R. Arya
  • Physics
    Journal of Cosmology and Astroparticle Physics
  • 2020
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