951 citations · 1.4k across the 41 of their papers we have counts for
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Spontaneous Symmetry Breaking without classical fields: a Functional Renormalization Group approach
A. Jakovac, P. Mati, P. Posfay
We propose an approach to describe Spontaneous Symmetry Breaking (SSB) that does not rely on the order parameter dependent free energy (Landau theory). We use the Functional Renorm…
Interacting two-particle states in the symmetric phase of the chiral Nambu--Jona-Lasinio model
A. Jakovac, A. Patkos
The renormalisation group flow of the chiral Nambu--Jona-Lasinio (NJL) model with one fermion flavor is mapped out in the symmetric phase with the help of the Functional Renormalis…
Renormalisation Group determination of scalar mass bounds in a simple Yukawa-model
A. Jakovac, I. Kaposvari, A. Patkos
The scalar mass is determined in the simplest scalar-fermion Yukawa-model in the whole range of stability of the scalar potential. Two versions of the Functional Renormalisation Gr…
Shear viscosity of the theory from classical simulation
M. M. Homor, A. Jakovac
Shear viscosity of the classical theory is measured using classical microcanonical simulation. To calculate the Kubo formula, we measure the energy-momentum tensor correlatio…
Non-Gaussian fixed points in fermionic field theories without auxiliary Bose-fields
A. Jakovac, A. Patkos, P. Posfay
The functional equation governing the renormalization flow of fermionic field theories is investigated in dimensions without introducing auxiliary Bose-fields on the example of…
Validating the 2PI resummation: the Bloch-Nordsieck example
A. Jakovac, P. Mati
In this work we provide a numerical method to obtain the Bloch-Nordsieck spectral function at finite temperature in the framework of the 2PI approximation. We find that the 2PI res…