88 citations · 840 across the 46 of their papers we have counts for
46 papers
Consistency Condition for Slow-roll and Rapid-turn Inflation
Lilia Anguelova, Calin Iuliu Lazaroiu
We summarize our work on a consistency condition for inflation in two-field cosmological models, in the regime of rapid turn and third-order slow roll. To ensure a sustained inflat…
Dynamics of Inspiraling Dark Energy
Lilia Anguelova, John Dumancic, Richard Gass +1
We investigate the dynamics of a multifield dark energy model, which arises from certain rapid-turning and inspiraling trajectories in field space. We find the speed of sound …
Hidden Symmetries, Rapid Turns and Cosmic Acceleration
Lilia Anguelova
Hidden symmetries provide a powerful tool for finding exact solutions in multifield cosmological models. We review how, using such symmetries, one can find inflationary solutions i…
Dynamical consistency conditions for rapid turn inflation
Lilia Anguelova, Calin Iuliu Lazaroiu
We derive consistency conditions for sustained slow roll and rapid turn inflation in two-field cosmological models with oriented scalar field space, which imply that inflationary m…
Primordial Black Hole Generation in a Two-field Inflationary Model
Lilia Anguelova
We summarize our work on the generation of primordial black holes in a type of two-field inflationary models. The key ingredient is a sharp turn of the background trajectory in fie…
Dark Energy from Inspiraling in Field Space
Lilia Anguelova, John Dumancic, Richard Gass +1
We find an exact solution of the equations of motion of a two-field cosmological model, which realizes multi-field dark energy. The latter is characterized by field-space trajector…