38 citations · 299 across the 25 of their papers we have counts for
25 papers
Finite-resolution measurement induces topological curvature defects in spacetime
Ewa Czuchry, Jean-Pierre Gazeau
We show that regularizing -dimensional Minkowski spacetime with a finite-resolution Gaussian probe, analogous to Weyl-Heisenberg (Gabor) signal analysis and related quantiza…
On the energy flow of in Hořava-Lifshitz cosmology
Ewa Czuchry, Nils A. Nilsson
Hořava-Lifshitz gravity has been proposed as a ghost-free quantum gravity model candidate with an anisotropic UV-scaling between space and time. We present here a cosmological back…
Resolution of cosmological singularity in Hořava-Lifshitz cosmology
Ewa Czuchry
The standard CDM model despite its agreement with observational data still has some issues unaddressed, lie the problem of initial singularity. Solving that problem usually requ…
Semi-Classical quantisation of 3-particles Toda lattice augmented; Application to the Mixmaster anisotropy Hamiltonian
Herve Bergeron, Ewa Czuchry
Usual approaches to quantisation of a 3-Toda lead to numerical calculations requiring many steps that can be time consuming to insure their reliability. In order to reduce as much…
Quantum Mixmaster as a model of the Primordial Universe
Hervé Bergeron, Ewa Czuchry, Jean-Pierre Gazeau +1
The Mixmaster solution to Einstein field equations was examined by C. Misner in an effort to better understand the dynamics of the early universe. We highlight the importance of th…
Hořava-Lifshitz cosmology in light of new data
Nils A. Nilsson, Ewa Czuchry
We present new observational constraints on Lorentz violating Hořava-Lifshitz cosmological scenarios using an updated cosmological data set from Cosmic Microwave Background (Planck…