3 papers
gr-qc2025
Singularity resolution in the backreacted Schwarzschild geometry from 2D matter with negative central charge
F. J. Marañón-González, A. del Río, J. Navarro-Salas
Two-dimensional dilaton gravity provides a valuable framework to study the dynamics of quantum black holes. These models are often coupled to conformal scalar fields, which capture…
gr-qc2024
Adiabatic regularization for massive and massless spin- fields
F. Javier Marañón-González, José Navarro-Salas
The adiabatic regularization method is likely the most direct and intuitive renormalization scheme for FLRW cosmologies. The method requires one to start with a nonvanishing mass,…
gr-qc2024
Singularity resolution in spherically reduced 2D semiclassical gravity with negative central charge
Adrián del Río, F. Javier Marañón-González, José Navarro-Salas
We analyze the semiclassical Schwarzschild geometry in the Boulware quantum state in the framework of two-dimensional (2D) dilaton gravity. The classical model is defined by the sp…