164 citations · 1.3k across the 70 of their papers we have counts for
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Spectral densities from the lattice
Paulo J. Silva, David Dudal, Orlando Oliveira
We discuss a method to extract the Källén-Lehmann spectral density of a particle (be it elementary or bound state) propagator by means of 4d lattice data. We employ a linear regula…
Källén-Lehmann spectroscopy for (un)physical degrees of freedom
David Dudal, Orlando Oliveira, Paulo J. Silva
We consider the problem of "measuring" the Källén-Lehmann spectral density of a particle (be it elementary or bound state) propagator by means of 4d lattice data. As the latter are…
Gluon screening mass at finite temperature from Landau gauge gluon propagator in lattice QCD
P. J. Silva, O. Oliveira, P. Bicudo +1
We address the interpretation of the Landau gauge gluon propagator at finite temperature as a massive type bosonic propagator. Using pure gauge SU(3) lattice simulations at a fixed…
The lattice gluon propagator in Landau gauge at zero and finite temperature
Paulo J. Silva, Orlando Oliveira
The interplay between the finite volume and finite lattice spacing is investigated using lattice QCD simulations to compute the Landau gauge gluon propagator at zero temperature. C…
Landau gauge fixing on the lattice using GPU's
Nuno Cardoso, Paulo J. Silva, Orlando Oliveira +1
In this work, we consider the GPU implementation of the steepest descent method with Fourier acceleration for Laudau gauge fixing, using CUDA. The performance of the code in a Tesl…
(Lattice) Propagators and Extraction of Spectral Densities
D. Dudal, O. Oliveira, P. J. Silva
In this proceeding, we explain a few steps for an alternative extraction of the spectral density of a two-point function (propagator) based on a discrete set of data points. We pre…