3 papers
gr-qc2026
Derivation of the Smarr formula from the Komar charge in Einstein-nonlinear electrodynamics theories and applications to regular black holes
Gabriele Barbagallo, Tomás OrtÃn
We construct the generalized Komar charge of generic, non-linear theories of electrodynamics (NLED) in 4 dimensions coupled to Einstein gravity. The contribution of the dimensionfu…
hep-th2026
On the generalized Komar charge of supersymmetric solutions
Tomás OrtÃn
We consider the supersymmetric solutions of several supergravity theories (ungauged and supergravities coupled to vector supermultiplets and…
hep-th2025
Higher-form symmetries in supergravity, scalar charges and black-hole thermodynamics
Gabriele Barbagallo, José Luis V. Cerdeira, Carmen Gómez-Fayrén +2
Minimal 5-dimensional supergravity compactified on a circle gives the T model of supergravity, whose duality group is SL. We study exhaust…