27 September 2015 to 3 October 2015
Kobe, Fashion Mart, Japan
Japan timezone

Hadronic Spectral Functions at Finite Temperature and Density

29 Sept 2015, 16:30
2h
Exhibition space 3 & 4

Exhibition space 3 & 4

Board: 0723
Poster Electromagnetic Probes Poster Session

Speaker

Prof. Lorenz von Smekal (TU Darmstadt)

Description

We have recently developed a new method to obtain real-time quantities such as spectral functions or transport coefficients at finite temperature and density within 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. The feasibility of the method is demonstrated at the example of the mesonic spectral functions in the quark-meson model at different temperatures and quark chemical potentials, in particular around the critical endpoint in the phase diagram of the model. An extension of the method to finite spatial momenta [2] furthermore allows to compute transport coefficients such as the shear viscosity and the shear viscosity over entropy-density ratio at finite temperature and density. ------------------- [1] R.-A. Tripolt, N. Strodthoff, L. von Smekal, and J. Wambach, Phys. Rev. D 89 (2014) 034010. [2] R.-A. Tripolt, L. von Smekal, and J. Wambach, Phys. Rev. D 90 (2014) 0774031.
On behalf of collaboration: [Other]

Primary author

Prof. Lorenz von Smekal (TU Darmstadt)

Co-authors

Mr Christopher Jung (TU Darmstadt) Jochen Wambach (TU-Darmstadt and GSI) Ralf-Arno Tripolt (TU Darmstadt)

Presentation materials

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