4 papers
On the generalized Komar charge of Kaluza-Klein theories and higher-form symmetries
G. Barbagallo, J. L. V. Cerdeira, C. Gómez-Fayrén +2
The generalized Komar -form charge can be modified by the addition of any other on-shell closed (conserved) -form charge. We show that, with Kaluza--Klein boundary co…
A note on the calculation of the Komar integral in the Lorentzian Taub-NUT spacetime
Gabriele Barbagallo, José Luis V. Cerdeira, Carmen Gómez-Fayrén +1
It has recently been shown that one can derive consistent thermodynamical expressions in the Lorentzian Taub--NUT spacetime keeping the Misner-string singularities and taking into…
Democratic actions with scalar fields: symmetric sigma models, supergravity actions and the effective theory of the type IIB superstring
Jose Juan Fernandez-Melgarejo, Giacomo Giorgi, Carmen Gomez-Fayren +2
The dualization of the scalar fields of a theory into (d-2)-form potentials preserving all the global symmetries is one of the main problems in the construction of democratic pseud…
Gravitational higher-form symmetries and the origin of hidden symmetries in Kaluza-Klein compactifications
Carmen Gómez-Fayrén, Tomás OrtÃn, Matteo Zatti
We show that, in presence of isometries and non-trivial topology, the Einstein--Hilbert action is invariant under certain transformations of the metric which are not diffeomorphism…