# Revisiting CMB constraints on warm inflation

@article{Arya2017RevisitingCC, 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}, year={2017}, volume={2018}, 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…

## 26 Citations

### Observational constraints on warm inflation in loop quantum cosmology

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2019

By incorporating quantum aspects of gravity, Loop Quantum Cosmology (LQC) provides a self-consistent extension of the inflationary scenario, allowing for modifications in the primordial inflationary…

### Warm Higgs G-inflation: predictions and constraints from Planck 2015 likelihood

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2018

We reconsider a recently proposed warm G-inflation scenario in which the Galileon scalar field concurrently dissipates its kinetic energy as the radiation fluid throughout inflation and the universe…

### Study of warm inflationary models and their parameter estimation from CMB

- PhysicsInternational Journal of Modern Physics D
- 2020

Warm inflation is a natural and well-motivated description of cosmic inflation which accounts for the inflaton dissipation and radiation production during the inflationary phase, neglected in the…

### Dynamical and observational constraints on the warm little inflaton scenario

- PhysicsPhysical Review D
- 2018

We explore the dynamics and observational predictions of the Warm Little Inflaton scenario, presently the simplest realization of warm inflation within a concrete quantum field theory construction.…

### Paradigm of warm quintessential inflation and production of relic gravity waves

- Physics
- 2021

We consider the framework of quintessential inflation in the warm background which is caused by the dissipation of the scalar field energy density into relativistic degrees of freedom. The…

### Probability of warm inflation in loop quantum cosmology

- PhysicsPhysical Review D
- 2018

Warm inflation is analyzed in the context of Loop Quantum Cosmology (LQC). The bounce in LQC provides a mean through which a Liouville measure can be defined, which has been used previously to…

### Reexamination of the warm inflation curvature perturbations spectrum

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2019

The two approaches to compute perturbations in warm inflation are examined. It is shown that both approaches lead to different expressions for the amplitude of the primordial spectrum, with a…

### Formation of primordial black holes from warm inflation

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2020

Primordial Black Holes (PBHs) serve as a unique probe to the physics of the early Universe, particularly inflation. In light of this, we study the formation of PBHs by the collapse of overdense…

### The paradigm of warm quintessential inflation and spontaneous baryogenesis

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2022

In this paper, we consider a scenario of spontaneous baryogenesis in a framework of warm quintessential inflation where the residual inflaton field, left out after warm inflation, plays the role of…

### Predictions of Spectral Parameters by Several Inflationary Universe Models in Light of the Planck Results

- Physics
- 2018

I give a review of predictions of values of spectral parameters for a large number of inflationary models. The present review includes detailed deductions and information about the approximations…

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