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Inflatino-less Cosmology
John Joseph M. Carrasco, Renata Kallosh, Andrei Linde
We construct inflationary models in the context of supergravity with orthogonal nilpotent superfields [1]. When local supersymmetry is gauge-fixed in the unitary gauge, these model…
Cosmological Attractors and Initial Conditions for Inflation
John Joseph M. Carrasco, Renata Kallosh, Andrei Linde
Inflationary -attractor models in supergravity, which provide excellent fits to the latest observational data, are based on the Poincare disk hyperbolic geometry. We refine thes…
-Attractors: Planck, LHC and Dark Energy
John Joseph M. Carrasco, Renata Kallosh, Andrei Linde
We develop four-parameter supergravity models of inflation and dark energy, constrained so that , and the cosmological constant take their known observable v…
Gauge and Gravity Amplitude Relations
John Joseph M. Carrasco
In these lectures I talk about simplifications and universalities found in scattering amplitudes for gauge and gravity theories. In contrast to Ward identities, which are understoo…
The Hyperbolic Geometry of Cosmological Attractors
John Joseph M. Carrasco, Renata Kallosh, Andrei Linde +1
Cosmological alpha-attractors give a natural explanation for the spectral index n_s of inflation as measured by Planck while predicting a range for the tensor-to-scalar ratio r, co…