Unraveling the Hubble tension with warm inflation

TL;DR

This paper explores warm inflation models' compatibility with recent CMB data and investigates how dissipation influences the Hubble tension, linking warm inflation to superstring theory and quantum gravity.

Contribution

It assesses warm inflation's viability against recent observations and examines dissipation's impact on the Hubble tension within supersymmetric and string theory frameworks.

Findings

Tensor to scalar ratio aligns with CMB results in warm inflation models.

Dissipation affects the Hubble parameter, potentially addressing the Hubble tension.

Warm inflation models incorporate superstring theory, offering a quantum gravity testing platform.

Abstract

The validity of warm inflation is investigated in the light of recent CMB missions in both strong and weak dissipative regimes. The tensor to scalar ratio of various inflationary models is found to be consistent with the recent CMB results for different models of warm inflation. The role of dissipation on the popular models of warm inflation in the context of supersymmetry and string theory is investigated. Further, the effect of dissipation coefficient of warm inflation on the Hubble parameter and its role in accounting the Hubble tension is examined. Warm inflation embodies superstring theory and can provide a platform to test quantum gravity in multi field scenario.