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| Glenn Barnich | |
|---|---|
| Name | Glenn Barnich |
| Birth date | 1970s |
| Birth place | Liège, Belgium |
| Nationality | Belgian |
| Fields | Theoretical physics, Mathematical physics, Gauge theory |
| Workplaces | Université de Mons, International Solvay Institutes, Université catholique de Louvain |
| Alma mater | Université de Liège |
| Doctoral advisor | Marc Henneaux |
| Known for | BRST cohomology, asymptotic symmetries, conserved charges |
Glenn Barnich is a Belgian theoretical physicist and mathematical physicist known for contributions to gauge theory, BRST cohomology, and asymptotic symmetries in gravitational and gauge field contexts. He has held academic positions at several European institutions and collaborated with researchers across Belgium, France, Germany, and United Kingdom. Barnich's work connects rigorous mathematical structures with problems in General relativity, Yang–Mills theory, and the formalism underlying conserved quantities in field theories.
Barnich was born in Liège and received his early education in the French Community of Belgium. He completed undergraduate and graduate studies at the University of Liège (Université de Liège), where he specialized in theoretical and mathematical physics under the supervision of Marc Henneaux. His doctoral work focused on aspects of BRST quantization and cohomological methods applied to constrained systems, placing him in a lineage connected to researchers at the Free University of Brussels and the Université catholique de Louvain. During his graduate years he engaged with seminars linked to the International Solvay Institutes and followed developments emerging from collaborations between groups at the Institut des Hautes Études Scientifiques and the Max Planck Institute for Gravitational Physics.
Barnich began his postdoctoral and early-career appointments with research stays at institutions such as the International Solvay Institutes and the Université catholique de Louvain. He later joined the faculty at the Université de Mons, where he established a research program bridging mathematical formalisms and applications in classical and quantum field theory. His career includes visiting positions and collaborations with teams at the Université Pierre et Marie Curie (Paris VI), the École Normale Supérieure, the CERN theoretical physics groups, and research interactions with the Albert Einstein Institute. Barnich has served on program committees for conferences at venues like the Les Houches Summer School, the Perimeter Institute, and the Royal Society meetings, contributing to the cross-fertilization of ideas between communities centered at the Institute for Advanced Study and European centers of excellence.
Barnich's research centers on the application of cohomological techniques to problems in gauge theory and General relativity, notably using BRST cohomology to classify consistent interactions, anomalies, and conserved currents. He developed systematic methods for deriving surface charges associated with asymptotic symmetries, linking the theoretical structures behind the Bondi–Metzner–Sachs group, ADM mass, and notions of soft theorems that connect to work by researchers at the Institute for Advanced Study and groups studying the S-matrix program. His collaborations have clarified the role of boundary terms in variational principles, relating to formulations used in the Hamiltonian formulation of general relativity and to techniques employed at the Maxwell Institute.
Key contributions include the rigorous derivation of conserved quantities in gravity and gauge theories via cohomological descent equations, which connect to analyses by scholars at the Princeton University relativity group and to conceptual developments from the Cambridge University mathematical physics community. Barnich's work on asymptotic symmetries has informed research on memory effects and infrared structure investigated by teams at the Kavli Institute for Theoretical Physics and the Perimeter Institute for Theoretical Physics, and his methods have been applied to higher-spin theories and to problems inspired by the AdS/CFT correspondence studied at the California Institute of Technology and Institut de Physique Théorique.
He has coauthored influential papers with collaborators from Belgium, France, and Germany, contributing to debates on the algebra of surface charges, central extensions in symmetry algebras, and the interplay between anomalies and conserved currents in curved spacetime backgrounds. His approaches are frequently cited alongside foundational work by researchers at the Université Paris-Saclay and the Scuola Normale Superiore.
Barnich has received recognition from Belgian and European scientific bodies for his contributions to theoretical physics. He has been invited to speak at major conferences including meetings organized by the European Physical Society, the International Centre for Theoretical Physics, and the Royal Society of London. He has held fellowships and visiting scientist appointments at institutes such as the Perimeter Institute and collaborative grants involving the European Research Council.
- G. Barnich and F. Brandt, papers on BRST cohomology and conserved currents relating to work at the Université de Liège and the Free University of Brussels. - G. Barnich, G. Compère, studies on asymptotic symmetries and surface charges connecting to analyses of the Bondi–Metzner–Sachs group and ADM formalism. - G. Barnich, M. Henneaux, foundational results on consistent interactions and cohomological methods with links to seminars at the International Solvay Institutes and research at the Institut des Hautes Études Scientifiques. - G. Barnich et al., investigations of central charges in symmetry algebras and applications to AdS/CFT correspondence contexts studied at Princeton University and the California Institute of Technology. - G. Barnich, collaborative reviews on infrared structure, memory effects, and soft theorems echoing work from the Kavli Institute for Theoretical Physics and the Perimeter Institute.
Category:Belgian physicists Category:Theoretical physicists