2 papers
gr-qc2025
Regular Schwarzschild black holes and cosmological models
Roberto Casadio, Alexander Kamenshchik, Jorge Ovalle
We study regular Schwarzschild black holes in General Relativity as an alternative to the singular counterpart. We analyze two types of solutions which are completely parameterised…
gr-qc2024
Relaxation of first-class constraints and the quantization of gauge theories: from "matter without matter" to the reappearance of time in quantum gravity
Roberto Casadio, Leonardo Chataignier, Alexander Yu. Kamenshchik +3
We make a conceptual overview of a particular approach to the initial-value problem in canonical gauge theories. We stress how the first-class phase-space constraints may be relaxe…