5 papers
Adiabatic renormalization for modified dispersion relations in cosmology
Christian Durán-Romero, Luis J. Garay, Mercedes MartÃn-Benito +1
We investigate the behavior of scalar quantum fields in cosmological backgrounds under modified dispersion relations, specifically focusing on how ultraviolet asymptotics influence…
Gravity from equilibrium thermodynamics of stretched light cones
Ana Alonso-Serrano, Luis J. Garay, Marek Liška +1
This work digs into the connection between gravity and thermodynamics of stretched light cones (SLC). They are associated with uniformly accelerating observers, who endow the SLC w…
Equivalence principles in Weyl transverse gravity
Ana Alonso-Serrano, Luis J. Garay, Marek Liška
There exist two consistent theories of massless, self-interacting gravitons, which differ by their local symmetries: general relativity and Weyl transverse gravity. We show that th…
Black hole thermodynamics probes the equivalence principle
Ana Alonso-Serrano, Luis J. Garay, Marek Liška
The equivalence principle for test gravitational physics strongly constrains dynamics of spacetime, providing a powerful criterion for selecting candidate theories of gravity. Howe…
From spacetime thermodynamics to Weyl transverse gravity
Ana Alonso-Serrano, Luis J. Garay, Marek Liška
There exist two consistent theories of self-interacting gravitons: general relativity and Weyl transverse gravity. The latter has the same classical solutions as general relativity…