Speaker
Jens Oluf Andersen
Description
The perturbative series for finite-temperature field theories has very poor convergence
properties and one needs a way to reorganize it.
In this talk, I review two ways of reorganizing the perturbative series for
field theories at finite temperature and chemical potential, namely hard-thermal-loop perturbation theory (HTLpt) and dimensional reduction (DR).
I will present results for the pressure and the quark susceptibilities from a 3-loop
HTLpt calculation and for the quark susceptibilities using DR at four loops.
A careful comparison with available lattice data shows good agreement for a number
of physical quantities.
Author
Co-authors
Aleksi Vuorinen
Aritra Bandyopadhyay
(Saha Institute)
Michael Strickland
(Kent State University)
Prof.
Mustafa Mustafa
(Saha Institute)
Najmul Haque
(Saha Institute of Nuclear Physics)
Dr
Nan Su
(Bielefeld University)
Dr
Sylvain Mogliacci
(Bielefeld U)
