Fermionic spectral functions with the functional renormalization group

被引:18
|
作者
Tripolt, Ralf-Arno [1 ,2 ]
Weyrich, Johannes [3 ]
von Smekal, Lorenz [3 ]
Wambach, Jochen [1 ,2 ,4 ]
机构
[1] European Ctr Theoret Studies Nucl Phys & Related, Str Tabarelle 286, I-38123 Villazzano, TN, Italy
[2] Fdn Bruno Kessler, Str Tabarelle 286, I-38123 Villazzano, TN, Italy
[3] Justus Liebig Univ Giessen, Inst Theoret Phys, Heinrich Buff Ring 16, D-35392 Giessen, Germany
[4] Tech Univ Darmstadt, Inst Kernphys Theoriezentrum, Schlossgartenstr 2, D-64289 Darmstadt, Germany
关键词
QCD;
D O I
10.1103/PhysRevD.98.094002
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present first results on the calculation of fermionic spectral functions from analytically continued flow equations within the functional renormalization group approach. Our method is based on the same analytic continuation from imaginary to real frequencies that was developed and used previously for bosonic spectral functions. In order to demonstrate the applicability of the method also for fermionic correlations we apply it here to the real-time quark propagator in the quark-meson model and calculate the corresponding quark spectral functions in the vacuum.
引用
收藏
页数:14
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