Nonperturbative QFT in the complex momentum space

Non-perturbative characteristics of spectral functions at finite temperature

14 Jun 2023, 14:45

45m

Physics and Chemistry Theatre (PCT) (Maynooth University)

Talk Wednesday Afternoon Session

Speaker

Peter Lowdon

Description

For QFTs at finite temperature spectral functions describe how particle systems behave in the presence of a thermal medium. Here we report on recent progress regarding the non-perturbative constraints imposed by causality on these objects, and discuss how this information can be used to extract spectral properties from Euclidean data.

Presentation materials

Maynooth_Lowdon.pdf