26–29 Sept 2023
DESY Hamburg
Europe/Berlin timezone

Gravitational waves from Dark Phase Transitions at Strong Coupling

27 Sept 2023, 14:50
20m
SR 2 (DESY)

SR 2

DESY

Speaker

Mr Nicklas Ramberg (Johannes gutenberg universität Mainz)

Description

In this talk, we demonstrate how to predict the gravitational wave spectra of Strongly coupled QFTs using holography and lattice data input for a pure SU(N) Yang-Mills theory with small uncertainties. We will elaborate on how we obtain an effective potential using holography with the free energy landscape approach and formulate an effective action. Once the effective action is in our grasp, we will use this to study bubble nucleation to predict the gravitational wave spectra. Furthermore, we will discuss how the bubble wall velocity computations can be made in steady-state configurations using holographic techniques by computations of the plasma friction force.

Summary

First Order Phase Transitions at strong coupling, Primordial Gravitational waves,

Primary author

Mr Nicklas Ramberg (Johannes gutenberg universität Mainz)

Presentation materials