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21 papers · 1 filter
Surface Charges Toolkit for Gravity
Ernesto Frodden, Diego Hidalgo
These notes provide a detailed catalog of surface charge formulas for different classes of gravity theories. The present catalog reviews and extends the existing literature on the…
Junction conditions in scalar-tensor theories
Luis Avilés, Hideki Maeda, Cristian Martinez
We analyze junction conditions at a null or non-null hypersurface in a large class of scalar-tensor theories in arbitrary dimensions. After showing that the metric a…
Hypergravity in five dimensions
Oscar Fuentealba, Javier Matulich, Ricardo Troncoso
We show that a spin- field can be consistently coupled to gravitation without cosmological constant in five-dimensional spacetimes. The fermionic gauge "hypersymmetry" require…
-Extended Supergravity, Unconventional SUSY and Graphene
L. Andrianopoli, B. L. Cerchiai, R. D'Auria +4
We derive a dimensional model with unconventional supersymmetry at the boundary of an -extended supergravity, generalizing previous results. The (u…
Luminal Propagation of Gravitational Waves in Scalar-tensor Theories: The Case for Torsion
José Barrientos, Fabrizio Cordonier-Tello, Cristóbal Corral +4
Scalar-tensor gravity theories with a nonminimal Gauss-Bonnet coupling typically lead to an anomalous propagation speed for gravitational waves, and have therefore been tightly con…
The anisotropic chiral boson
Oscar Fuentealba, Hernán A. González, Miguel Pino +1
We construct the theory of a chiral boson with anisotropic scaling, characterized by a dynamical exponent , whose action reduces to that of Floreanini and Jackiw in the isotropi…