Universal Attractor for Inflation at Strong Coupling
Рената КаллошDepartment of Physics and SITP, Stanford University, Stanford, California 94305, USAAndrei LindeDepartment of Physics and SITP, Stanford University, Stanford, California 94305, USADiederik RoestCentre for Theoretical Physics, University of Groningen, Nijenborgh 4, 9747 AG Groningen, Netherlands
2014en
ABI
Annotatsiya
We introduce a novel nonminimal coupling between gravity and the inflaton sector. Remarkably, for large values of this coupling all models asymptote to a universal attractor. This behavior is independent of the original scalar potential and generalizes the attractor in the φ4 theory with nonminimal coupling to gravity. The attractor is located in the "sweet spot" of parameter values that are preferred by Planck's recent results.
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