75 citations · 262 across the 10 of their papers we have counts for
7 papers · 1 filter
Isometries from gauge transformations
Ernesto Frodden, Kirill Krasnov
In four dimensions one can use the chiral part of the spin connection as the main object that encodes geometry. The metric is then recovered algebraically from the curvature of thi…
UNRUH EFFECT: Introductory Notes to Quantum Effects for Accelerated Observers
Ernesto Frodden, Nicolás Valdés
These pedagogical notes are dedicated to a derivation of the Unruh effect. There is special emphasis on the transparency of the arguments and the exhibition of detailed calculation…
Surface Charges for Gravity and Electromagnetism in the First Order Formalism
Ernesto Frodden, Diego Hidalgo
A new derivation of surface charges for 3+1 gravity coupled to Electromagnetism is obtained. Gravity theory is written in the tetrad-connection variables. The general derivation st…
Modelling black holes with angular momentum in loop quantum gravity
Ernesto Frodden, Alejandro Perez, Daniele Pranzetti +1
We construct a SU(2) connection formulation of Kerr isolated horizons. As in the non-rotating case, the model is based on a SU(2) Chern-Simons theory describing the degrees of free…
Statistical Entropy of a BTZ Black Hole from Loop Quantum Gravity
Ernesto Frodden, Marc Geiller, Karim Noui +1
We compute the statistical entropy of a BTZ black hole in the context of three-dimensional Euclidean loop quantum gravity with a cosmological constant . As in the four-dimension…
Black Hole Entropy from complex Ashtekar variables
Ernesto Frodden, Marc Geiller, Karim Noui +1
In loop quantum gravity, the number of microstates of a black hole for a given discrete geometry depends on the so-called Barbero-Immirzi parameter . Using a suit…
A local first law for black hole thermodynamics
Ernesto Frodden, Amit Ghosh, Alejandro Perez
We first show that stationary black holes satisfy an extremely simple local form of the first law δE=κ(l) δA/(8 π) where the thermodynamical energy E=A/(8πl) and (local) surface gr…