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52 papers · 2 filters
Local tuning of Coupling Constants allows for Quantum Fields in Curved Spacetime in the Lab
Isabeau Prémont-Schwarz
In this paper we will investigate how one can create emergent curved spacetimes by locally tuning the coupling constants of condensed matter systems. In the continuum limit we thus…
Ten questions on Group Field Theory (and their tentative answers)
Aristide Baratin, Daniele Oriti
We provide a short and non-technical summary of our current knowledge and some possible perspectives on the group field theory formalism for quantum gravity, in the form of a (part…
Experimenting with Quantum Fields in Curved Spacetime in the Lab
Isabeau Prémont-Schwarz
In this paper we will investigate how one can create emergent curved spacetimes by locally tuning the coupling constants of condensed matter systems. In the continuum limit we thus…
Non-commutative holonomies in 2+1 LQG and Kauffman's brackets
Karim Noui, Alejandro Perez, Daniele Pranzetti
We investigate the canonical quantization of 2+1 gravity with Λ > 0 in the canonical framework of LQG. A natural regularization of the constraints of 2+1 gravity can be defined in…
Isometric embeddings of 2-spheres by embedding flow for applications in numerical relativity
Michael Jasiulek, Mikolaj Korzynski
We present a numerical method for solving Weyl's embedding problem which consists of finding a global isometric embedding of a positively curved and positive-definite spherical 2-m…
Black hole Area-Angular momentum-Charge inequality in dynamical non-vacuum spacetimes
María E. Gabach Clément, José Luis Jaramillo
We show that the area-angular momentum-charge inequality (A/(4π))^2 \geq (2J)^2 + (Q_E^2 + Q_M^2)^2 holds for apparent horizons of electrically and magnetically charged rotating bl…