151 citations · 170 across the 6 of their papers we have counts for
6 papers
Comment on the choice of time in a two-component formulation of the Wheeler--DeWitt equation
Marc Thibeault, Claudio Simeone
The two-component formalism in quantum cosmology is revisited with a particular emphasis on the identification of time. Its relation with the appearance of imaginary eigenvalues is…
Thin-shell wormholes in Einstein-Maxwell theory with a Gauss-Bonnet term
Marc Thibeault, Claudio Simeone, Ernesto F. Eiroa
We study five dimensional thin-shell wormholes in Einstein-Maxwell theory with a Gauss-Bonnet term. The linearized stability under radial perturbations and the amount of exotic mat…
Macroscopic description of preheating
Esteban Calzetta, Marc Thibeault
We present a macroscopic model of the decay of a coherent classical scalar field into statistical fluctuations through the process of parametric amplification. We solve the field t…
Generic composition of boosts: an elementary derivation of the Wigner rotation
Rafael Ferraro, Marc Thibeault
Because of its apparent complexity, the discussion of Wigner rotation is usually reduced to the study of Thomas precession, which is too specific a case to allow a deep understandi…
Relativistic theories of interacting fields and fluids
Esteban Calzetta, Marc Thibeault
We investigate divergence-type theories (DTT) describing the dissipative interaction between a field and a fluid. We look for theories which, under equilibrium conditions, reduce t…
Perturbative Analysis of Bianchi IX using Ashtekar Formalism
E. Calzetta, M. Thibeault
The goal of this paper is to provide a new analysis of the classical dynamics of Bianchi type I, II and IX models by applying conventional Hamiltonian methods in the language of As…