185 citations · 1.1k across the 21 of their papers we have counts for
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Note on Self-Duality and the Kodama State
Alejandro Corichi, Jeronimo Cortez
An interesting interplay between self-duality, the Kodama (Chern-Simons) state and knot invariants is shown to emerge in the quantum theory of an Abelian gauge theory. More precise…
Black Holes in de Sitter Space: Masses, Energies and Entropy Bounds
Alejandro Corichi, Andres Gomberoff
In this paper we consider spacetimes in vacuum general relativity --possibly coupled to a scalar field-- with a positive cosmological constant . We employ the Isolated Horizons…
Non-minimal couplings, quantum geometry and black hole entropy
Abhay Ashtekar, Alejandro Corichi
The black hole entropy calculation for type I isolated horizons, based on loop quantum gravity, is extended to include non-minimally coupled scalar fields. Although the non-minimal…
Hyperbolicity of the Kidder-Scheel-Teukolsky formulation of Einstein's equations coupled to a modified Bona-Masso slicing condition
Miguel Alcubierre, Alejandro Corichi, Jose A. Gonzalez +2
We show that the Kidder-Scheel-Teukolsky family of hyperbolic formulations of the 3+1 evolution equations of general relativity remains hyperbolic when coupled to a recently propos…
A hyperbolic slicing condition adapted to Killing fields and densitized lapses
Miguel Alcubierre, Alejandro Corichi, Jose A. Gonzalez +2
We study the properties of a modified version of the Bona-Masso family of hyperbolic slicing conditions. This modified slicing condition has two very important features: In the fir…