3 papers
hep-lat2025
Stochastic automatic differentiation and the Signal to Noise problem
Guilherme Catumba, Alberto Ramos
Lattice Field theory allows to extract properties of particles in strongly coupled quantum field theories by studying Euclidean vacuum expectation values. When estimated from numer…
hep-lat2025
Lattice techniques to investigate the strong problem: lessons from a toy model
David Albandea, Guilherme Catumba, Alberto Ramos
Recent studies have claimed that the strong problem does not occur in QCD, proposing a new order of limits in volume and topological sectors when studying observables on the l…
hep-lat2022
Study of SU(2) gauge theories with multiple Higgs fields in different representations
Guilherme Catumba, Atsuki Hiraguchi, George W. -S. Hou +5
We study two different SU(2) gauge-scalar theories in 3 and 4 spacetime dimensions. Firstly, we focus on the 3 dimensional SU(2) theory with multiple Higgs fields in the adjoint re…