Conveners
Contributed Talk: Classical gauge theories and gravity
- Sebastian Brezina
Contributed Talk: Conserved Charges in Asymptotically Locally AdS Spacetimes via the Katz Method
- Nelson Merino
Contributed Talk: Holographic thermal propagator from modularity
- Katarina Trailović
Contributed Talk: T.B.A.
- There are no conveners in this block
Contributed Talk: Gauge-Invariant Renormalisation Group Flows
- Paul Philip Sprenger
Contributed Talk: The autoparallel equations with non-metricity as Finsler geodesics
- Lehel Csillag
Contributed Talk: A Journey through Higher-Derivative Models in Contemporary Field Theory
- Ronaldo Thibes
Contributed Talk: From generalized principal connections to generalized Yang-Mills theories
- Hartwig Winterroth
Contributed Talk: Gravity is gauge? A unification perspective
- Priidik Gallagher
With a initial motivation of treating point charge divergences in electrodynamics, higher-derivative (HD) models have come a long way in quantum in field theory passing through important challenges concerning their unitarity evolution and existence of propagating ghost fields. In modern physics, the relevance of HD models relies not only on abstract mathematical curiosities, but actually...
It belongs to folklore that electromagnetic, electroweak, and strong interactions are understood as gauge theories. In contrast, the situation regarding gravitational interaction is often considered more complex. Since the 1960s, this complexity has led to extensive research on the question: Can gravity be understood as a gauge theory?
In this talk, we explore a framework for...
The Katz boundary term provides a well-defined variational principle under Dirichlet boundary conditions and, when combined with a subtraction of the action evaluated on a background, yields finite Noether charges and a finite on-shell action. This boundary term is constructed from the dynamical metric and the difference between the Christoffel symbols associated with the dynamical manifold...
In the framework of the fiber bundle approach to covariant Lagrangian field theories we investigate the notions of generalized principal bundle and generalized principal connection as introduced by Castrillón López and Rodríguez Abella (2023), aiming at the development of an instance of generalized mathematical gauge theories. We provide a characterization of Lie group fiber bundle connections...
In this talk I give a brief introduction to the functional renormalisation group, a non-perturbative framework widely used to study gauge field theories. While this approach has been successfully applied to Yang–Mills theory and quantum gravity, standard implementations generally modify gauge invariance. This modification obscures the physical interpretation of results. I present a novel...
The question of the extent to which gravity is a gauge theory can prove to be surprisingly complicated, considering constraint classes, internal and external symmetries, spacetime tangent structure, and connection versus metric variables. Furthermore, unifying gravity with the rest of the interactions provides even more conundrum, but also an arena for theory development. The premise for...
We revisit the low-temperature thermal propagator of a holographic conformal field theory in four spacetime dimensions by exploiting its connection to the Nekrasov–Shatashvili (NS) limit of the $\Omega$-deformed $\mathcal{N}=2$ supersymmetric $SU(2)$ Yang–Mills theory with $N_f=4$ hypermultiplets. In the regime of vanishing energy, the low-temperature expansion corresponds to a large adjoint...
Autoparallel curves in metric-affine geometries are generally non-variational and do not generally coincide with the Euler-Lagrange equations of any Lagrangian. For symmetric connections with vectorial nonmetricity, we show that the autoparallel equations can be realized as geodesics of a suitably chosen Finsler metric, reducing the problem of variationality to Finsler metrizability. By...
Abstract T.B.A.
