12–16 Dec 2022
IISER Mohali
Asia/Kolkata timezone

Probing the small-scale physics of warm inflation from primordial black holes

13 Dec 2022, 15:45
15m
LH5 (IISER Mohali)

LH5

IISER Mohali

Lecture Hall Complex, IISER Mohali, Sector 81, Knowledge city, SAS Nagar, Punjab, India

Speaker

Richa Arya

Description

We explore the role of dissipative effects during warm inflation leading to the features in the primordial curvature power spectrum at the small-scales. In our study, we consider different models of warm inflation and discuss the formation of primordial black holes (PBH) from them. In particular, we focus on generating PBHs with mass in the range ($10^{17} −10^{23}$) g, that can explain the full dark matter abundance. Further, we calculate the scalar induced gravitational waves (SIGW) spectrum associated with the PBH formation, and explore their signatures in the gravitational wave detectors. This is crucial for understanding the physics of inflation, dark matter phenomenology and gravitational waves observations.

Session Astroparticle Physics and Cosmology

Primary author

Co-authors

Dr Arvind Kumar Mishra (IISER Pune) Dr Rajeev Kumar Jain (Indian Institute of Science, Bangalore)

Presentation materials

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