19 citations · 105 across the 15 of their papers we have counts for
12 papers · 1 filter
The axion-photon coupling from lattice Quantum Chromodynamics
Bastian B. Brandt, Gergely Endrődi, José Javier Hernández Hernández +2
Quantum Chromodynamics (QCD) is the theory of the strong interactions within the Standard Model of particle physics, which explains more than 99% of the mass of the visible Univers…
Spectral reconstruction techniques, their shortcomings and relevance to the electric conductivity coefficient
C. Andratschke, B. B. Brandt, E. Garnacho-Velasco +3
Spectral reconstruction is a well studied numerically ill-posed problem which arises due to the relation of the Euclidean correlator to the spectral function via an inhomogeneous F…
Constraining fermionic condensates
Gergely Endrődi, Tamás G. Kovács, Gergely Markó +1
We study spontaneous symmetry breaking in quantum field theories with fermionic order parameters and construct, for the first time in the literature, the constraint effective poten…
Electromagnetic effects on topological observables in QCD
Bastian B. Brandt, Gergely Endrődi, José Javier Hernández Hernández +2
In this proceedings article we present a selected set of our lattice results regarding the effect that background electromagnetic fields have on the topology of QCD. In particular,…
Flattening of the quantum effective potential in fermionic theories
Gergely Endrődi, Tamás G. Kovács, Gergely Markó +1
We present methods to constrain fermionic condensates on the level of the path integral, which grant access to the quantum effective potential in the infinite volume limit. In the…
Inhomogeneous phases in the 3+1-dimensional Nambu-Jona-Lasinio model and their dependence on the regularization scheme
Laurin Pannullo, Marc Wagner, Marc Winstel
In this work we study the -dimensional Nambu-Jona-Lasinio (NJL) model in the mean field-approximation. We carry out calculations using five different regularization schemes (t…