249 citations · 3.5k across the 127 of their papers we have counts for
8 papers · 1 filter
Unitarization of gravity
Iñigo Asiáin, Antonio Dobado, Domènec Espriu
We make use of the improved K-matrix algorithm to obtain unitarized amplitudes in gravity (the so-called Starobisnsky model, of cosmological relevance). The procedure is o…
Unitarized one-loop graviton-graviton scattering
Rafael L. Delgado, Antonio Dobado, Domènec Espriu
In this work we interpret the Einstein-Hilbert (EH) Lagrangian of gravitation as the first term of a low-energy effective theory similar to those considered in the chiral Lagrangia…
Seeking for resonances in unitarized one-loop graviton-graviton scattering
Rafael L. Delgado, Antonio Dobado, Domènec Espriu
Some effective field theories exhibit dynamical resonances that, when properly included, mitigate their bad behaviour at high energies. Unitarization of the partial wave amplitudes…
Chiral symmetry breaking and the Unruh effect
Adrian Casado-Turrion, Antonio Dobado
The possibility of chiral symmetry restoration by acceleration is considered. The Thermalization Theorem formalism and the large limit (with being the number of pions) are…
Viscosity near phase transitions
Antonio Dobado, Felipe J. Llanes-Estrada, Juan M. Torres-Rincon
Probably the most enticing observation in theoretical physics during the last decade was the discovery of the great amount of consequences obtained from the AdS/CFT conjecture put…
On the violation of the holographic viscosity versus entropy KSS bound in non relativistic systems
Antonio Dobado, Felipe J. Llanes-Estrada
A computation of the quotient of shear viscosity to entropy density, or KSS number is performed, in the non-relativistic and classical regime, first in Chiral Perturbation Th…
Chiral lagrangians and the QCD string
J. Alfaro, A. Dobado, D. Espriu
We propose a method to derive the low-energy efective action of QCD assuming that the long-distance properties of strong interactions can be described by a string theory. We bypass…
Nonlocal low-energy effective action for gravity with torsion
Antonio Dobado, Antonio L. Maroto
In this work we calculate the low-energy effective action for gravity with torsion, obtained after the integration of scalar and fermionic matter fields, using the local momentum r…