104 citations · 1.4k across the 76 of their papers we have counts for
76 papers
A Lorentzian Gribov no-pole condition for Yang-Mills theory
M. S. Guimaraes
For over four decades, Gribov's no-pole condition has been almost exclusively explored in Euclidean space, where the elliptic nature of the Faddeev-Popov operator provides a clear…
Bell-CHSH inequality and unitary operators
M. S. Guimaraes, I. Roditi, S. P. Sorella
Unitary operators are employed to investigate the violation of the Bell-CHSH inequality. The ensuing modifications affecting both classical and quantum bounds are elucidated. The r…
Ghost-gluon vertex in the presence of the Gribov horizon: General kinematics
Nahuel Barrios, Marcelo S. Guimaraes, Bruno W. Mintz +2
Correlation functions are important probes for the behavior of quantum field theories. Already at tree-level, the Refined Gribov Zwanziger (RGZ) effective action for Yang-Mills the…
Maximal violation of the Bell-Clauser-Horne-Shimony-Holt inequality via bumpified Haar wavelets
David Dudal, Philipe De Fabritiis, Marcelo S. Guimaraes +2
We devise a general setup to investigate the violation of the Bell-CHSH inequality in the vacuum state in the context of Quantum Field Theory. We test the method with massless spin…
BRST invariant formulation of the Bell-CHSH inequality in gauge field theories
David Dudal, Philipe De Fabritiis, Marcelo S. Guimaraes +2
A study of the Bell-CHSH inequality in gauge field theories is presented. By using the Kugo-Ojima analysis of the BRST charge cohomology in Fock space, the Bell-CHSH inequality is…
Gribov horizon in Noncommutative QED
Ozório Holanda, Marcelo S. Guimaraes, Luigi Rosa +1
It is known that Noncommutative QED (NCQED) exhibits Gribov ambiguities in the Landau gauge. These ambiguities are related to zero modes of the Faddeev-Popov operator and arise in…