Charges and fluxes in cosmological backgrounds

Particle Physics Theory seminar

Charges and fluxes in cosmological backgrounds

Event details


Charges and fluxes in cosmological backgrounds


Following the detection of gravitational waves by the ground based LIGO detectors, space based experiments are planned to detect gravitational waves at different frequencies, both those associated with supermassive black holes and those produced in the early Universe. This talk will explore the definition of fluxes and charges in cosmological backgrounds, which is relevant to the theoretical understanding of gravitational waves in our Universe. We will begin by explaining the subtleties in defining charges in general relativity, and how these are addressed by an approach developed by Wald and collaborators. We will then extend this approach to de Sitter like cosmologies and explain how charges/fluxes can be defined in this context, illustrating with some physical examples.

About Particle Physics Theory seminars

The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..

Find out more about Particle Physics Theory seminars.