101 citations · 344 across the 33 of their papers we have counts for
5 papers · 1 filter
Quintessential Inflation in Palatini Gravity
Sarunas Verner
We study a model of quintessential inflation in the context of Palatini gravity. As a representative example, we consider the Peebles-Vilenkin model of quintessential inflation wit…
Building Models of Inflation in No-Scale Supergravity
John Ellis, Marcos A. G. Garcia, Natsumi Nagata +3
After reviewing the motivations for cosmological inflation formulated in the formalism of supersymmetry, we argue that the appropriate framework is that of no-scale supergravity. W…
Non-Oscillatory No-Scale Inflation
John Ellis, Dimitri V. Nanopoulos, Keith A. Olive +1
We propose a non-oscillatory no-scale supergravity model of inflation (NO-NO inflation) in which the inflaton does not oscillate at the end of the inflationary era. Instead, the Un…
The case for decaying spin-3/2 dark matter
Marcos A. G. Garcia, Yann Mambrini, Keith A. Olive +1
We couple a sterile neutrino sector to a spin-3/2 particle and show that with a Planck reduced coupling, we can obtain a sufficiently long lifetime making the spin-3/2 particle a g…
Phenomenology and Cosmology of No-Scale Attractor Models of Inflation
John Ellis, Dimitri V. Nanopoulos, Keith A. Olive +1
We have recently proposed attractor models for modulus fixing, inflation, supersymmetry breaking and dark energy based on no-scale supergravity. In this paper we develop phenomenol…