140 citations · 1.6k across the 92 of their papers we have counts for
93 papers
On consistency conditions for strong SRRT inflation in two-field cosmological models
Elena-Mirela Babalic, Calin-Iuliu Lazaroiu
We discuss the strong version of the consistency conditions for SRRT inflation in general two-field cosmological models. In the fiducial case, this condition is a geometric PDE whi…
A functional for Spin(7) forms
Calin Iuliu Lazaroiu, C. S. Shahbazi
We characterize the set of all conformal Spin(7) forms on an oriented and spin Riemannian eight-manifold as solutions to a homogeneous algebraic equation of degree two for…
Strong rapid turn inflation and contact Hamilton-Jacobi equations
E. M. Babalic, C. I. Lazaroiu, V. O. Slupic
We consider the consistency condition for ``strong'' sustained rapid turn inflation with third order slow roll (SRRT) in two-field cosmological models with oriented scalar manifold…
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…
Natural coordinates and horizontal approximations in two-field cosmological models
Calin Iuliu Lazaroiu
We construct natural local coordinate systems on the phase space of two-field cosmological models with orientable target space, which allow for a description of cosmological flows…
Natural observables and dynamical approximations in multifield cosmological models
Calin Iuliu Lazaroiu
I give a geometric construction of certain first order natural dynamical observables in multifield cosmological models with arbitrary target space topology and discuss a system of…