48 citations · 56 across the 3 of their papers we have counts for
3 papers
gr-qc2022
Quintessence from a state space perspective
Artur Alho, Claes Uggla, John Wainwright
We use dynamical systems methods to study quintessence models in a spatially flat and isotropic spacetime with matter and a scalar field with potentials for which …
gr-qc2014★ 8 cited
Dynamics of Robertson-Walker spacetimes with diffusion
Artur Alho, Simone Calogero, Maria P. Machado Ramos +1
We study the dynamics of spatially homogeneous and isotropic spacetimes containing a fluid undergoing microscopic velocity diffusion in a cosmological scalar field. After deriving…
gr-qc2014★ 48 cited
Global dynamics and inflationary center manifold and slow-roll approximants
Artur Alho, Claes Uggla
We consider the familiar problem of a minimally coupled scalar field with quadratic potential in flat Friedmann-Lemaître-Robertson-Walker cosmology to illustrate a number of techni…