18–19 Dec 2024
Centre for Particle Theory
Europe/London timezone

Gravitational waves and de Sitter spacetime

19 Dec 2024, 14:50
30m
Ph8 (Centre for Particle Theory)

Ph8

Centre for Particle Theory

Speaker

David Waisman Andrade (Queen Mary University of London)

Description

Abstract:

Understanding and detecting gravitational waves is key to testing new theories.
Gravitational wave calculations from black holes all assume the background spacetime is flat.
Understanding these in a de Sitter background is imperative, and has a two-fold effect:
- It expands the reach of future gravity waves observations to the earliest universe (inflation) and also the largest distances (where our universe’s expansion becomes relevant).
- Develops our understanding of the asymptotic behaviour of gravitational waves in a de Sitter spacetime.

Primary authors

David Waisman Andrade (Queen Mary University of London) Dr Scott Melville (Queen Mary University of London)

Presentation materials