149 citations · 278 across the 6 of their papers we have counts for
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Thin-shell wormholes in dilaton gravity
Ernesto F. Eiroa, Claudio Simeone
In this work we construct charged thin-shell Lorentzian wormholes in dilaton gravity. The exotic matter required for the construction is localized in the shell and the energy condi…
The problem of time and gauge invariance in the quantization of cosmological models. II. Recent developments in the path integral approach
T. P. Shestakova, C. Simeone
The paper is the second part of the work devoted to the problem of time in quantum cosmology. Here we consider in detail two approaches within the scope of Feynman path integration…
The problem of time and gauge invariance in the quantization of cosmological models. I. Canonical quantization methods
T. P. Shestakova, C. Simeone
The paper is the first of two parts of a work reviewing some approaches to the problem of time in quantum cosmology, which were put forward last decade, and which demonstrated thei…
Cylindrical thin-shell wormholes
Ernesto F. Eiroa, Claudio Simeone
A general formalism for the dynamics of non rotating cylindrical thin-shell wormholes is developed. The time evolution of the throat is explicitly obtained for thin-shell wormholes…
Global phase time and wave function for the Kantowski-Sachs anisotropic universe
Claudio Simeone
A consisten quantization with a clear notion of time and evolution is given for the anisotropic Kantowski-SDachs cosmological model. It is shown that a suitable coordinate choice a…
Comment on the transition amplitude for toy universe models
Hernan De Cicco, Claudio Simeone
The parametrized system called ``ideal clock'' is turned into an ordinary gauge system and quantized by means of a path integral in which canonical gauges are admissible. Then the…