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Aspects of gluon propagation in Landau gauge: spectral densities, and mass scales at finite temperature
Paulo J. Silva, Orlando Oliveira, David Dudal +2
We discuss a method to extract the Källén-Lehmann spectral density of a particle (be it elementary or bound state) propagator and apply it to compute gluon spectral densities from…
Coulomb and Landau Gauge Fixing in GPUs using CUDA and MILC
Nuno Cardoso
In this work, we present the GPU implementation of the overrelaxation and steepest descent method with Fourier acceleration methods for Laudau and Coulomb gauge fixing using CUDA f…
Gluon mass at finite temperature in Landau gauge
Pedro Bicudo, Orlando Oliveira, Paulo Silva +1
Using lattice results for the Landau gauge gluon propagator at finite temperature, we investigate its interpretation as a massive type bosonic propagator. In particular, we estimat…
SU(3) quark-antiquark QCD flux tube
Pedro Bicudo, Marco Cardoso, Nuno Cardoso
We compute the quark-antiquark flux tube for pure gauge SU(3) in space-time 3 + 1 dimensions. To increase the signal over noise ratio, we apply the improved multihit and extended s…
Many faces of the Landau gauge gluon propagator at zero and finite temperature: positivity violation, spectral density and mass scales
Paulo J. Silva, Orlando Oliveira, David Dudal +2
We address several aspects of gluon propagation at zero and finite temperature. In particular, we study the violation of spectral positivity, we discuss a method to extract the Käl…