Quark Matter 2018

Functional QCD: From Correlators to Thermodynamics

May 15, 2018, 5:00 PM

2h 40m

First floor and third floor (Palazzo del Casinò)

Poster Phase diagram and search for the critical point Poster Session

Speaker

Anton K. Cyrol (University of Heidelberg)

Description

Functional continuum methods provide ab-initio access to the non-perturbative regime of quantum chromodynamics. In particular, they allow accessing non-zero temperatures and densities, making them an ideal tool to access QCD's phase diagram. The functional QCD collaboration [1] aims to map out the phase diagram in a systematic manner. Within the functional renomalization group (FRG) approach, remarkable progress has been achieved over the last few years.

In this talk I will briefly review results on chiral symmetry breaking and confinement at vanishing and finite temperature [2-5]. A particular challenge within the functional approaches is the extraction of the equation of state from correlation functions. I will report on recent progress and present first results on the trace anomaly as well as the pressure.

References:
[1] fQCD Collaboration, J. Braun, L. Corell, A. K. Cyrol, W.-J. Fu, M. Leonhardt, M. Mitter, J. M. Pawlowski, M. Pospiech, F. Rennecke, N. Wink
[2] M. Mitter, J. M. Pawlowski, and N. Strodthoff, arXiv:1411.7978 [hep-ph], Phys. Rev. D91, 054035 (2015)
[3] A. K. Cyrol, L. Fister, M. Mitter, J. M. Pawlowski, and N. Strodthoff, arXiv:1605.01856 [hep-ph], Phys. Rev. D94, 054005 (2016)
[4] A. K. Cyrol, M. Mitter, J. M. Pawlowski, and N. Strodthoff, arXiv:1706.06326 [hep-ph]
[5] A. K. Cyrol, M. Mitter, J. M. Pawlowski, and N. Strodthoff, arXiv:1708.03482 [hep-ph]