Jun 14 – 16, 2023
AlbaNova Main Building
Europe/Stockholm timezone

Propagation of gauge fields in hot and dense plasmas at higher orders

Jun 16, 2023, 1:30 PM
15m
Oskar Klein Auditorium FR4 (AlbaNova Main Building)

Oskar Klein Auditorium FR4

AlbaNova Main Building

Roslagstullsbacken 21, 114 21 Stockholm
Speaker in ELPA session Sektionen för elementarpartikel och astropartikelfysik Sektionen för elementarpartikel och astropartikelfysik

Speaker

Andreas Ekstedt (Uppsala University)

Description

Thermal field theory is indispensable for describing hot and dense systems. Yet perturbative calculations are often stymied by a host of energy scales, and tend to converge slowly. This means that precise results require the apt use of effective field theories. In this talk I describe how the effective description of slowly varying gauge fields, known as hard thermal loops, can be extended to higher orders. I also discuss how to consistently define asymptotic masses at higher orders; and how to treat spectral functions close to the lightcone.

Primary author

Andreas Ekstedt (Uppsala University)

Presentation materials