<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>α</mml:mi></mml:math>-attractor inflation: Models and predictions
Sukannya Bhattacharya, Koushik Dutta, Mayukh R. Gangopadhyay, Anshuman Maharana
Abstract
The $\ensuremath{\alpha}$-attractor models are some of the most interesting models of inflation from the point of view of upcoming observations in cosmology and also attractive from the point of view of supergravity. We confront representative models of exponential and polynomial $\ensuremath{\alpha}$-attractors with the latest cosmological data (Planck'18+BICEP2/Keck array) to obtain predictions and best fit values of model parameters. The analysis is done by making use of ModeChord and CosmoMC plugged together via PolyChord.
Topics & Concepts
AttractorSupergravityPlanckPhysicsCosmologyInflation (cosmology)Point (geometry)Exponential functionTheoretical physicsPolynomialParticle physicsSupersymmetryAstrophysicsMathematical analysisGeometryMathematicsCosmology and Gravitation TheoriesGalaxies: Formation, Evolution, PhenomenaBlack Holes and Theoretical Physics