580 citations
- Centre National de la Recherche ScientifiqueFR88 papers
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- Center for Pastor TheologiansUS9 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR8 papers
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- Institut de Neurobiologie de la MéditerranéeFR7 papers
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32 papers · 1 filter
Ashtekar's variables without spin
Thomas Schucker
Ashtekar's variables are shown to arise naturally from a 3+1 split of general relativity in the Einstein-Cartan formulation. Thereby spinors are exorcised.
Semiclassical suppression of weak anisotropies of a generic Universe
Marco Valerio Battisti, Riccardo Belvedere, Giovanni Montani
A semiclassical mechanism which suppresses the weak anisotropies of an inhomogeneous cosmological model is developed. In particular, a wave function of this Universe having a meani…
Spherically symmetric black holes in minimally modified self-dual gravity
Akihiro Ishibashi, Simone Speziale
We discuss spherically symmetric black holes in the modified self-dual theory of gravity recently studied by Krasnov, obtained adding a Weyl-curvature dependent `cosmological term'…
"Forget time"
Carlo Rovelli
Following a line of research that I have developed for several years, I argue that the best strategy for understanding quantum gravity is to build a picture of the physical world w…
Semi-classical isotropization of the Mixmaster Universe
Marco Valerio Battisti, Riccardo Belvedere, Giovanni Montani
A semi-classical mechanism which leads to the isotropization of the Mixmaster Universe is developed. A wave function of this Universe, which has a meaningful probabilistic interpre…
GUP vs polymer quantum cosmology: the Taub model
Marco Valerio Battisti, Orchidea Maria Lecian, Giovanni Montani
The fate of the cosmological singularity in the Taub model is discussed within the two frameworks. An internal time variable is ruled out and the only remaining degree of freedom (…