565 citations · 1.5k across the 21 of their papers we have counts for
20 papers
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…
Noether-Wald charge in supergravity: the fermionic contribution
Igor Bandos, Tomas Ortin
We study the invariance of N=1,d=4 supergravity solutions under diffeormophisms and show that, in order to obtain consistent conditions (``Killing equations'') invariant under loca…
Wald entropy in Kaluza-Klein black holes
Carmen Gomez-Fayren, Patrick Meessen, Tomas Ortin +1
We study the thermodynamics of the 4-dimensional electrically charged black-hole solutions of the simplest 5-dimensional Kaluza-Klein theory using Wald's formalism. We show how the…
On scalar charges and black-hole thermodynamics
Romina Ballesteros, Carmen Gómez-Fayrén, Tomás Ortín +1
We revisit the first law of black hole thermodynamics in 4-dimensional theories containing scalar and Abelian vector fields coupled to gravity using Wald's formalism and a new defi…
Magnetic charges and Wald entropy
Tomas Ortin, David Pereñiguez
Using Wald's formalism, we study the thermodynamics (first laws and Smarr formulae) of asymptotically-flat black holes, rings etc. in a higher-dimensional higher-rank generalizatio…
Komar integrals for theories of higher order in the curvature and black-hole chemistry
T. Ortín
We construct Komar-type integrals for theories of gravity of higher order in the Riemann curvature coupled to simple kinds of matter (scalar and vector fields) and we use them to c…