OKC BSM meeting

Thursday 30 May 2024, 10:00 → 11:00 Europe/Stockholm

A5:1003 (AlbaNova Main Building)

Christian Ohm (KTH Royal Institute of Technology), Timothy Linden (Stockholm University)

Those who are at AlbaNova are very welcome to join in the room, but there is also a zoom connection: Zoom link 
(room 104 167 778, password 737501)

10:00 → 10:40 Gravitational wave archaeology from an early period of matter domination: theory and applications

Graham White (Southampton U.) will give an interesting talk, organized by Joshua Eby!

Abstract: There are many ways in which the early Universe could depart from the standard picture of radiation domination persisting all the way from (p)reheating until recombination. If there was an early period of matter domination that suddenly transitions into radiation, there can be enhancements to the scalar power spectrum which source tensor perturbations at second order. I will discuss how the signal looks as a function of how quick the transition between radiation and matter occurs before discussing some applications.

Speakers: Graham White (Southampton U.), Joshua Eby (Stockholm University), Joshua Eby (Stockholm University)