Non-minimal Inflationary Attractors

Abstract

Recently we identified a new class of (super)conformally invariant theories which allow inflation even if the scalar potential is very steep in terms of the original conformal variables. Observational predictions of a broad class of such theories are nearly model-independent. In this paper we consider generalized versions of these models where the inflaton has a non-minimal coupling to gravity with ξ<0 different from its conformal value ξ= -1/6. We show that these models exhibit attractor behavior. With even a slight increase of |ξ| from |ξ| = 0, predictions of these models for n_s and r rapidly converge to their universal model-independent values corresponding to conformal coupling ξ= -1/6. These values of n_s and r practically coincide with the corresponding values in the limit of infinitely large negative ξ.

13 pages, 6 figures; references added

References in corpus (10)

• The Standard Model Higgs boson as the inflaton
• Universality Class in Conformal Inflation
• Minimal Supergravity Models of Inflation
• Superconformal generalizations of the Starobinsky model
• Superconformal Symmetry, NMSSM, and Inflation
• Primordial Bispectrum from Multifield Inflation with Nonminimal Couplings
• Superconformal Generalization of the Chaotic Inflation Model λϕ^4/4 - ξ/ 2 ϕ^2 R
• Multifield Dynamics of Higgs Inflation
• Testing String Theory with CMB
• Higher Order Corrections in Minimal Supergravity Models of Inflation

Cited by in corpus (144)

• Superconformal Inflationary $\alpha$-Attractors
• A universal attractor for inflation at strong coupling
• The Minimal Volkov - Akulov - Starobinsky Supergravity
• Self-resonance after inflation: oscillons, transients and radiation domination
• Comments on the Starobinsky Model of Inflation and its Descendants
• Multi-field Conformal Cosmological Attractors
• Reheating and Post-inflationary Production of Dark Matter
• Primordial Black Holes from String Inflation
• Universality classes of inflation
• Constraints on α-attractor inflation and reheating
• Gravitational perturbations from oscillons and transients after inflation
• Frame-dependence of higher-order inflationary observables in scalar-tensor theories
• Selected topics in scalar-tensor theories and beyond
• Preheating after Multifield Inflation with Nonminimal Couplings, I: Covariant Formalism and Attractor Behavior
• Preheating after Higgs Inflation: Self-Resonance and Gauge boson production
• The Palatini side of inflationary attractors
• Weyl Current, Scale-Invariant Inflation and Planck Scale Generation
• Primordial black holes and secondary gravitational waves from inflationary model with a non-canonical kinetic term
• Preheating after multifield inflation with nonminimal couplings, III: Dynamical spacetime results
• Multifield Inflation after Planck: Isocurvature Modes from Nonminimal Couplings
• Resurrecting Quadratic Inflation with a non-minimal coupling to gravity
• Higher Order Corrections in Minimal Supergravity Models of Inflation
• Robust Inflation from Fibrous Strings
• Primordial Black Holes from Multifield Inflation with Nonminimal Couplings
• New universal attractor in nonmininally coupled gravity: Linear inflation
• CMB constraints on the inflaton couplings and reheating temperature in $\alpha$-attractor inflation
• A Geometrical Upper Bound on the Inflaton Range
• Starobinsky-like two-field inflation
• Preheating after multifield inflation with nonminimal couplings, II: Resonance Structure
• BICEP/Keck Constraints on Attractor Models of Inflation and Reheating
• Revisiting small-scale fluctuations in $\alpha$-attractor models of inflation
• Generalized Pole Inflation: Hilltop, Natural, and Chaotic Inflationary Attractors
• Attractor Behaviour in Multifield Inflation
• Simple predictions from multifield inflationary models
• Disformal transformation of cosmological perturbations
• Unifying inflation and dark matter with the Peccei-Quinn field: observable axions and observable tensors
• Inflation in a scale invariant universe
• Angular inflation in multi-field $\alpha$-attractors
• Inertial Spontaneous Symmetry Breaking and Quantum Scale Invariance
• Two-Field Analysis of No-Scale Supergravity Inflation
• Primordial black holes and secondary gravitational waves from the Higgs field
• Superheavy scalar dark matter from gravitational particle production in $\alpha$-attractor models of inflation
• Constant-roll tachyon inflation and observational constraints
• NANOGrav signal from axion inflation
• From WIMPs to FIMPs with Low Reheating Temperatures
• Towards distinguishing variants of non-minimal inflation
• Possible antigravity regions in $F(R)$ theory?
• Nonminimal coupling and inflationary attractors
• Planck Constraints and Gravitational Wave Forecasts for Primordial Black Hole Dark Matter Seeded by Multifield Inflation
• Invariant slow-roll parameters in scalar-tensor theories
• Universality and scaling in multi-field $\alpha$-attractor preheating
• Gravitational wave consistency relations for multifield inflation
• Non-Minimal Two-Loop Inflation
• Reconstructing inflation in scalar-torsion $f(T,\varphi )$ gravity
• Reconstruction of constant slow-roll inflation
• Non-slow-roll dynamics in $\alpha -$attractors
• Secondary GWs and PBHs in string inflation: formation and detectability
• Initial conditions for plateau inflation: a case study
• Reheating and Dark Radiation after Fibre Inflation
• Fitting string inflation to real cosmological data: the Fibre Inflation case
• On the Topology of the Inflaton Field in Minimal Supergravity Models
• Starobinsky-Type Inflation from ${\alpha }^{\prime }$-Corrections
• Inflation, Symmetry, and B-Modes
• Pre - Inflationary Clues from String Theory ?
• Single crystal study of the layered heavy fermion compounds Ce${}_2$PdIn${}_8$, Ce${}_3$PdIn${}_{11}$, Ce${}_2$PtIn${}_8$ and Ce${}_3$PtIn${}_{11}$
• Random Potentials and Cosmological Attractors
• Reconstructing warm inflation
• Confronting Dark Matter Freeze-In during Reheating with Constraints from Inflation
• Vacuum structure in a chiral R+R^n modification of pure supergravity
• Non-minimal coupling in light of ACT
• Inflation from Asymptotically Safe Theories
• Reconstruction of extended inflationary potentials for attractors
• Non-minimal (self-)running inflation: metric vs. Palatini formulation
• Inflationary predictions of double-well, Coleman-Weinberg, and hilltop potentials with non-minimal coupling
• Hillclimbing inflation
• Inflation as a spontaneous symmetry breaking of Weyl symmetry
• Geometrical Destabilisation of Ultra-Light Axions in String Inflation
• Increase of $n_s$ in regularized pole inflation & Einstein-Cartan gravity
• Multiple point criticality principle and Coleman-Weinberg inflation
• Observational constraints on inflationary models with non-minimally derivative coupling by ACT
• On the Gauged Kahler Isometry in Minimal Supergravity Models of Inflation
• Conformal inflation from the Higgs
• Inflationary Parameters in Renormalization Group Improved ${\varphi }^4$ Theory
• Isocurvature Constraints on Scalar Dark Matter Production from the Inflaton
• Observational signatures of the parametric amplification of gravitational waves during reheating after inflation
• $\alpha$-attractor inflation: Models and predictions
• Multifield dynamics of supersymmetric Higgs inflation in SU(5) GUT
• Non-canonical inflation coupled to matter
• Reconstructing G-inflation: From the attractors $n_S(N)$ and $r(N)$
• Multi-field formulation of gravitational particle production after inflation
• LiteBIRD and CMB-S4 Sensitivities to Reheating in Plateau Models of Inflation
• Nonminimal coupling inflation with constant slow roll
• Unification of inflation and dark matter in the Higgs-Starobinsky model
• Inflationary Models with Gauss-Bonnet Coupling in Light of ACT Observations
• Approximate reconstruction of inflationary potential with ACT observations
• Reconstructing k-essence: Unifying the attractor $n_S(N)$ and the swampland criteria
• $\alpha$-attractor from superconformal E-models in brane inflation
• Fibre inflation and precision CMB data
• Scale Invariant Gravity and Black Hole Ringdown
• Inflation in $R^2$ supergravity with non-minimal superpotentials
• On the $\alpha$-attractor T-models
• The Reconstruction of Non-Minimal Derivative Coupling Inflationary Potentials
• On the Renormalization Group perspective of $\alpha$-attractors
• Chaotic inflation limits for non-minimal models with a Starobinsky attractor
• (P)reheating and gravitational waves in $\alpha$-attractor models
• Quantum-Corrected ${\varphi }^4$ Inflation in Light of ACT Observations
• New generalization of the simplest $\alpha$-attractor $T$ model
• Lepton collider as a window to reheating via freezing in dark matter detection. Part II
• Connecting Cosmic Inflation to Particle Physics with LiteBIRD, CMB-S4, EUCLID and SKA
• Attractor Models in Scalar-Tensor Theories of Inflation
• A Fake Instability in String Inflation
• Non-minimally Coupled Pseudoscalar Inflaton
• General $f(R)$ and conformal inflation from minimal supergravity plus matter
• Radiative-Corrected Higgs Inflation in Light of the Latest ACT Observations
• The $c$-map, Tits Satake subalgebras and the search for $\mathcal{N}=2$ inflaton potentials
• Conformal inflation with chameleon coupling
• t-channel dark matter at the LHC -- a whitepaper
• Some Pathways in non-Linear Supersymmetry: Special Geometry Born-Infeld's, Cosmology and dualities
• An issue with the classification of the scalar-tensor theories of gravity
• Mimetic Curvaton
• Non-Minimal Inflation with a scalar-curvature mixing term $\frac{1}{2}\xi R{\varphi }^2$
• Multi-messenger FIMP
• Non-canonical Conformal Attractors for Single Field Inflation
• Exact inflationary solutions in exponential gravity
• Constraining non-minimally coupled squared-Quartic Hilltop Inflation in light of ACT observations
• Constraining the quintessential $\alpha$-attractor inflation through dynamical horizon exit method
• Constraining $\beta$-Exponential Inflation with the latest ACT observations
• Broken scale invariance, $\alpha$-attractors and vector impurity
• Supergravity Contributions to Inflation in models with non-minimal coupling to gravity
• Generalized Conformal Transformation and Inflationary Attractors
• Superconformal generalizations of auxiliary vector modified polynomial f(R) theories
• Nonminimal Couplings in the Early Universe: Multifield Models of Inflation and the Latest Observations
• Possible relationship between initial conditions for inflation and past geodesic incompleteness of the inflationary spacetime
• Primordial black holes and scalar-induced gravitational waves from the polynomial attractor model
• A New Class of Non-canonical Conformal Attractors for Multifield Inflation
• Generation of CMB and Cosmological constant via bulk viscosity
• Inflationary attractors from nonminimal coupling
• Complementary signatures of $\alpha -$attractor inflation in CMB and cosmic string Gravitational Waves
• Inflationary attractors from a non-canonical kinetic term
• Non-linear effects in early Universe cosmology
• Reconciling the ACT Preference in $f(T)$ Gravity: Inflation and Reheating Constraints
• AliCPT Sensitivity to Cosmic Reheating
• A novel way of constraining the $\alpha$-attractor chaotic inflation through Planck data
• Adaptive asymptotic solutions of inflationary models in the Hamilton-Jacobi formalism: Application to T-models