Isocurvature, Black Holes, and the Maximum Temperature of our Universe

Date

2021/09/28(Tue)11:00〜12:00

Venue

Online (Zoom)

Speaker

Dr. Samuel Charles Passaglia ( Kavli IPMU)

Language

English

URL

Contact

Takahisa Igata / igata-AT-post.kek.jp


Overview

The isocurvature component of the primordial perturbations has been largely ignored ever since CMB experiments established that on large-scales the adiabatic mode dominates. On small scales, however, isocurvature can still play a role. I present a new signal of small-scale isocurvature, the formation of primordial black holes, which I use to derive new model-independent isocurvature constraints. I then discuss the isocurvature we expect in the Standard Model from the evolution of the Higgs field during reheating.


Release date 2021/09/10 Updated 2024/06/26