Cosmological attractors and initial conditions for inflation

  title={Cosmological attractors and initial conditions for inflation},
  author={John Joseph M. Carrasco and Renata Kallosh and Andrei Linde},
  journal={Physical Review D},
Inflationary $\alpha$-attractor models in supergravity, which provide excellent fits to the latest observational data, are based on the Poincare disk hyperbolic geometry. We refine these models by constructing Kahler potentials with built-in inflaton shift symmetry and by making a canonical choice of the goldstino Kahler potential. The refined models are stable with respect to all scalar fields at all $\alpha$, no additional stabilization terms are required. The scalar potential $V$ has a… 

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