Collaboration
David Dudal is based at ghent-university (KU Leuven campus, Belgium). The collaboration began in 2010 and is ongoing, making him the primary international collaborator in the group. Over 20 joint papers have been produced. He also served as co-supervisor of a cotutelle PhD student (Duifje van Egmond, 2020). The collaboration is supported institutionally by the CAPES-PrInt program “Strong Interactions: Theoretical Foundations and Applications.”
Joint Work
Dudal’s contributions concentrate on two broad themes:
- Gribov physics and spectral functions: long-running collaboration on the Gribov-Zwanziger and refined Gribov-Zwanziger frameworks, including propagator behavior, glueball masses, spectral functions, and the Gribov horizon in Landau gauge. Joint work also covers Higgs-confinement phase structure.
- Bell-CHSH in gauge theories: more recent collaboration on formulating Bell-CHSH tests consistently with the BRST symmetry structure of gauge-fixed theories, contributing to the BRST-invariant Bell-CHSH formulation.
The joint program also touches on confinement and duality through the study of confinement models and phase structure in non-abelian gauge theories.
Expertise
- Gribov-Zwanziger and refined Gribov-Zwanziger (RGZ) framework
- Gluon and ghost propagators in Landau gauge
- Spectral functions and Källén-Lehmann representations
- Glueball masses and operator mixing
- Higgs-confinement phase structure
- BRST symmetry in gauge theories
- Bell-CHSH inequalities in the BRST formulation
- Gribov copies and Gribov horizon