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Fermionic spectral functions with the functional renormalization group

Tripolt, Ralf-Arno ; Weyrich, Johannes ; Smekal, Lorenz von ; Wambach, Jochen (2022)
Fermionic spectral functions with the functional renormalization group.
In: Physical Review D, 2018, 98 (9)
doi: 10.26083/tuprints-00012719
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Fermionic spectral functions with the functional renormalization group
Language: English
Date: 2022
Place of Publication: Darmstadt
Year of primary publication: 2018
Publisher: American Physical Society
Journal or Publication Title: Physical Review D
Volume of the journal: 98
Issue Number: 9
Collation: 14 Seiten
DOI: 10.26083/tuprints-00012719
Corresponding Links:
Origin: Secondary publication

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.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-127195
Classification DDC: 500 Science and mathematics > 530 Physics
Divisions: 05 Department of Physics > Institute of Nuclear Physics
Date Deposited: 09 Mar 2022 15:20
Last Modified: 22 Feb 2023 07:26
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/12719
PPN: 505195534
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