75 citations · 504 across the 34 of their papers we have counts for
35 papers
Non-Gaussianities as a Signature of Quantumness of Quantum Cosmology
Hervé Bergeron, Przemysław Małkiewicz, Patrick Peter
We show that the consistent application of the rules of quantum mechanics to cosmological systems inevitably results in the so-called multiverse states in which neither the backgro…
Quantum entanglement and non-Gaussianity in the primordial Universe
Herve Bergeron, Przemyslaw Malkiewicz, Patrick Peter
We propose a new method to investigate signatures of a quantum gravity phase in the primordial state of cosmological perturbations. We formulate and study a quantum model of a pert…
A new class of exact coherent states: enhanced quantization of motion on the half-line
Hervé Bergeron, Jean-Pierre Gazeau, Przemysław Małkiewicz +1
We have discovered a class of dynamically stable coherent states for motion on the half-line. The regularization of the half-line boundary and the consequent quantum motion are exp…
Can a quantum mixmaster universe undergo a spontaneous inflationary phase?
Herve Bergeron, Jaime de Cabo Martin, Jean-Pierre Gazeau +1
We study a semiclassical model of the mixmaster universe. We first derive the quantum model and then introduce its semiclassical approximation. We employ a general integral quantiz…
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…