2 papers
gr-qc2025
Quasi-dust ekpyrotic scenario in Loop Quantum Cosmology
Emmanuel Frion, Mateo Pascual, Francesca Vidotto
In the framework of Loop Quantum Cosmology, we study a cosmological bouncing model with two fields that reproduce the desired features of the primordial power spectra. The model co…
gr-qc2025
Hamiltonian formalism for gauge-invariant cosmological perturbations with multiple scalar fields
Mateo Pascual
We generalise Langlois' Hamiltonian treatment of gauge-invariant linear cosmological perturbations to a cosmological setting with multiple scalar fields minimally coupled to gravit…