Speaker
Ralf-Arno Tripolt
(TU Darmstadt)
Description
We present a new method to obtain real-time quantities
such as spectral functions and transport coefficients
at finite temperature and density using a
non-perturbative Functional Renormalization Group approach [1].
Our method is based on a thermodynamically consistent truncation of the
flow equations for 2-point functions with analytically continued frequency
components in the originally Euclidean external momenta.
We demonstrate the feasibility of our method by calculating the mesonic
spectral functions in the quark-meson model at different temperatures and
values of the quark chemical potential, in particular near the critical endpoint
of the corresponding phase diagram.
[1] Tripolt, Strodthoff, von Smekal, Wambach, Phys. Rev. D 89, 034010 (2014)
| On behalf of collaboration: | None |
|---|
Author
Ralf-Arno Tripolt
(TU Darmstadt)
Co-authors
Prof.
Jochen Wambach
(TU Darmstadt and GSI)
Prof.
Lorenz von Smekal
(Justus-Liebig-Universität Giessen and TU Darmstadt)
Dr
Nils Strodthoff
(Ruprecht-Karls-Universität Heidelberg)
