Primordial non-gaussianities in single field inflation

Abstract

We calculate the three-point function for primordial scalar fluctuations in a single field inflationary scenario where the scalar field Lagrangian is a completely general function of the field and its first derivative. We obtain an explicit expression for the three-point correlation function in a self-consistent approximation scheme where the expansion rate varies slowly, analogous to the slow-roll limit in standard, single-field inflation. The three-point function can be written in terms of the familiar slow-roll parameters and three new parameters which measure the non-trivial kinetic structure of the scalar field, the departure of the sound speed from the speed of light, and the rate of change of the sound speed.

26 pages, uses iopart.cls. Updated to match version published in JCAP

References in corpus (33)

• Non-Gaussian features of primordial fluctuations in single field inflationary models
• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• k-Inflation
• Non-Gaussianity from Inflation: Theory and Observations
• Perturbations in k-inflation
• DBI in the Sky
• A new approach to the evolution of cosmological perturbations on large scales
• Reconstructing the Inflaton Potential --- an Overview
• The Cold Dark Matter Density Perturbation
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Tests of Gaussianity
• Second-Order Cosmological Perturbations from Inflation
• Single field consistency relation for the 3-point function
• Ghost Inflation
• Detection of non-Gaussianity in the WMAP 1-year data using spherical wavelets
• The Three--Point Correlation Function of the Cosmic Microwave Background in Inflationary Models
• The shape of non-Gaussianities
• Large-scale structure, the cosmic microwave background, and primordial non-gaussianity
• Scales and hierarchies in warped compactifications and brane worlds
• On non-gaussianities in single-field inflation
• The Density Perturbation Power Spectrum to Second-Order Corrections in the Slow-Roll Expansion
• The Angular Dependence of the Three-Point Correlation Function of the Cosmic Microwave Background Radiation as Predicted by Inflationary Cosmologies
• The Cosmic Microwave Background Bispectrum and Inflation
• Cosmological perturbations in a generalized gravity including tachyonic condensation
• Kinematic Constraints to the Key Inflationary Observables
• Gauge-Invariant Temperature Anisotropies and Primordial Non-Gaussianity
• Non-Gaussian Signatures in the Cosmic Background Radiation from Warm Inflation
• Cosmology from Rolling Massive Scalar Field on the anti-D3 Brane of de Sitter Vacua
• On the inflationary flow equations
• Enhancement of Non-Gaussianity after Inflation
• On the trispectrum as a gaussian test for cosmology
• On the conservation of second-order cosmological perturbations in a scalar field dominated universe
• Consistency relation for single scalar inflation
• Second-Order Corrections to the Power Spectrum in the Slow-Roll Expansion with a Time-Dependent Sound Speed

Cited by in corpus (348)

• Beyond the Cosmological Standard Model
• Encyclopaedia Inflationaris
• Inflation Dynamics and Reheating
• Cosmology and Fundamental Physics with the Euclid Satellite
• Observational Signatures and Non-Gaussianities of General Single Field Inflation
• Cosmology and fundamental physics with the Euclid satellite
• The imprints of primordial non-gaussianities on large-scale structure: scale dependent bias and abundance of virialized objects
• The inflationary prediction for primordial non-gaussianity
• Primordial Non-Gaussianities from Inflation Models
• Horndeski theory and beyond: a review
• Large Non-Gaussianities in Single Field Inflation
• Ultra Slow-Roll Inflation and the non-Gaussianity Consistency Relation
• Particle physics models of inflation and curvaton scenarios
• Gauge Field Production in Axion Inflation: Consequences for Monodromy, non-Gaussianity in the CMB, and Gravitational Waves at Interferometers
• Primordial non-gaussianities from multiple-field inflation
• Generation and Characterization of Large Non-Gaussianities in Single Field Inflation
• Violation of non-Gaussianity consistency relation in a single field inflationary model
• Effects of Scale-Dependent Non-Gaussianity on Cosmological Structures
• Non-Gaussianities in two-field inflation
• Galileon inflation
• Phenomenology of a Pseudo-Scalar Inflaton: Naturally Large Nongaussianity
• Hunting for Primordial Non-Gaussianity in the Cosmic Microwave Background
• Primordial perturbations and non-Gaussianities in DBI and general multi-field inflation
• Running Non-Gaussianities in DBI Inflation
• Features and New Physical Scales in Primordial Observables: Theory and Observation
• The shape of primordial non-Gaussianity and the CMB bispectrum
• Resonant Non-Gaussianity
• Perturbations in generalized multi-field inflation
• Signatures of Initial State Modifications on Bispectrum Statistics
• Primordial trispectrum from inflation
• Infrared effects in inflationary correlation functions
• On the one loop corrections to inflation and the CMB anisotropies
• Primordial non-Gaussianity and Bispectrum Measurements in the Cosmic Microwave Background and Large-Scale Structure
• Galaxy Bias and non-Linear Structure Formation in General Relativity
• The Inflationary Trispectrum for Models with Large Non-Gaussianities
• The inflationary trispectrum
• Inflationary non-Gaussianities in the most general second-order scalar-tensor theories
• Primordial fluctuations and non-Gaussianities in multi-field DBI inflation
• PBHs and secondary GWs from ultra slow roll and punctuated inflation
• Observable non-gaussianity from gauge field production in slow roll inflation, and a challenging connection with magnetogenesis
• Non-Gaussianities in Multi-field Inflation
• A Single Field Inflation Model with Large Local Non-Gaussianity
• The (not so) squeezed limit of the primordial 3-point function
• Inflation, Cosmic Perturbations and Non-Gaussianities
• Multiple field inflation
• Rapidly-Varying Speed of Sound, Scale Invariance and Non-Gaussian Signatures
• Single-field inflation, anomalous enhancement of superhorizon fluctuations, and non-Gaussianity in primordial black hole formation
• Revisiting non-Gaussianity from non-attractor inflation models
• The "in-in" Formalism and Cosmological Perturbations
• On the One Loop Corrections to Inflation II: The Consistency Relation
• Nongaussian and nonscale-invariant perturbations from tachyonic preheating in hybrid inflation
• Primordial non-Gaussianities in general modified gravitational models of inflation
• Pathological behaviour of the scalar graviton in Hořava-Lifshitz gravity
• Non-linear perturbations in multiple-field inflation
• Calculating the local-type fNL for slow-roll inflation with a non-vacuum initial state
• Non-gaussianity from the trispectrum in general single field inflation
• The Observational Status of Cosmic Inflation after Planck
• Duality Cascade in Brane Inflation
• Non-gaussianity from the inflationary trispectrum
• Equilateral non-Gaussianity from heavy fields
• Selected topics in scalar-tensor theories and beyond
• Planck constraints on single-field inflation
• Inflation with multiple sound speeds: a model of multiple DBI type actions and non-Gaussianities
• Non-gaussianity from the bispectrum in general multiple field inflation
• Comparing Infrared Dirac-Born-Infeld Brane Inflation to Observations
• Primordial Non-Gaussianity in Multi-Scalar Slow-Roll Inflation
• Implications for the non-Gaussianity of curvature perturbation from pulsar timing arrays
• BINGO: A code for the efficient computation of the scalar bi-spectrum
• Signature of Primordial Non-Gaussianity on Matter Power Spectrum
• Perturbation, Non-Gaussianity and Reheating in a GB-$\alpha$-Attractor Model
• Correlating features in the primordial spectra
• Nongaussianity from Tachyonic Preheating in Hybrid Inflation
• The non-adiabatic pressure in general scalar field systems
• Primordial non-Gaussianity from G-inflation
• Large slow-roll corrections to the bispectrum of noncanonical inflation
• The CMB Bispectrum
• UV-protected (Natural) Inflation: Primordial Fluctuations and non-Gaussian Features
• Quantum loop effects on the power spectrum and constraints on primordial black holes
• Large non-Gaussianities in the Effective Field Theory Approach to Single-Field Inflation: the Bispectrum
• Primordial Non-Gaussianities of General Multiple Field Inflation
• On the Issue of the ζSeries Convergence and Loop Corrections in the Generation of Observable Primordial Non-Gaussianity in Slow-Roll Inflation. Part I: the Bispectrum
• Non-Gaussianity from isocurvature perturbations
• Large Nongaussianity from Nonlocal Inflation
• In-in and $\delta N$ calculations of the bispectrum from non-attractor single-field inflation
• On Classification of Models of Large Local-Type Non-Gaussianity
• Large non-Gaussianities in the Effective Field Theory Approach to Single-Field Inflation: the Trispectrum
• Constraining Primordial Black Hole Formation from Single-Field Inflation
• Primordial Non-Gaussianity in the Cosmic Microwave Background
• Inflating in a Trough: Single-Field Effective Theory from Multiple-Field Curved Valleys
• Simple Bounds from the Perturbative Regime of Inflation
• N-body simulations with generic non-Gaussian initial conditions I: Power Spectrum and halo mass function
• Holographic Non-Gaussianity
• Galileon inflation evades the no-go for PBH formation in the single-field framework
• On Features and Nongaussianity from Inflationary Particle Production
• Non-Singular Bouncing Cosmology: Consistency of the Effective Description
• Inflation in Entropic Cosmology: Primordial Perturbations and non-Gaussianities
• Non-Gaussian perturbations from multi-field inflation
• Lectures on inflation and cosmological perturbations
• One-loop Corrections to Scalar and Tensor Perturbations during Inflation in Stochastic Gravity
• Non-Gaussianity in Two-Field Inflation
• A note on the role of the boundary terms for the non-Gaussianity in general k-inflation
• Inflationary tensor fossils in large-scale structure
• Shapes of primordial non-Gaussianities in the Horndeski's most general scalar-tensor theories
• Instabilities in Mimetic Matter Perturbations
• Non-gaussianity of inflationary field perturbations from the field equation
• Gravitational Wave Constraints on DBI Inflation
• Non-linear inflationary perturbations
• Anisotropic power-law k-inflation
• A General Analysis of Non-Gaussianity from Isocurvature Perturbations
• Consistently violating the non-Gaussian consistency relation
• The scalar bi-spectrum in the Starobinsky model: The equilateral case
• Nonperturbative analysis of the evolution of cosmological perturbations through a nonsingular bounce
• Constraints on Primordial Non-Gaussianity from Large Scale Structure Probes
• A note on the equivalence of a barotropic perfect fluid with a K-essence scalar field
• Non-Gaussianity from violation of slow-roll in multiple inflation
• The inflationary bispectrum with curved field-space
• Low-Energy Effective Field Theory for Chromo-Natural Inflation
• A generalized non-Gaussian consistency relation for single field inflation
• Overshooting, Critical Higgs Inflation and Second Order Gravitational Wave Signatures
• Consistency condition for inflation from (broken) conformal symmetry
• Bispectrum signatures of a modified vacuum in single field inflation with a small speed of sound
• On the full quantum trispectrum in multi-field DBI inflation
• Primordial non-Gaussianity from the covariance of galaxy cluster counts
• Action approach to cosmological perturbations: the 2nd order metric in matter dominance
• Preheating and the non-gaussianity of the curvature perturbation
• Reconstructing a general inflationary action
• K-inflationary Power Spectra in the Uniform Approximation
• Inflationary Infrared Divergences: Geometry of the Reheating Surface vs. delta N Formalism
• Lorentz boost and non-Gaussianity in multi-field DBI-inflation
• Predictions for Nongaussianity from Nonlocal Inflation
• Non-Gaussian Inflationary Perturbations from the dS/CFT Correspondence
• Primordial Magnetic Field Limits from CMB Trispectrum - Scalar Modes and Planck Constraints
• Accounting for scalar non-Gaussianity in secondary gravitational waves
• de Sitter limit of inflation and nonlinear perturbation theory
• Primordial Non-Gaussianity and Gravitational Waves: Observational Tests of Brane Inflation in String Theory
• How Gaussian can our Universe be?
• Large and strong scale dependent bispectrum in single field inflation from a sharp feature in the mass
• Priomordial non-Gaussian features from DBI Galileon inflation
• Primordial Trispectrum from Entropy Perturbations in Multifield DBI Model
• Revisiting non-Gaussianity in multifield inflation with curved field space
• Galaxy-CMB and galaxy-galaxy lensing on large scales: sensitivity to primordial non-Gaussianity
• Numerical evaluation of the bispectrum in multiple field inflation
• A new method for calculating the primordial bispectrum in the squeezed limit
• The IR stability of de Sitter QFT: Physical initial conditions
• Forecasts on Primordial non-Gaussianity from 21 cm Intensity Mapping experiments
• One-loop graviton corrections to the curvature perturbation from inflation
• General Single Field Inflation with Large Positive Non-Gaussianity
• Generating Scale-Invariant Perturbations from Rapidly-Evolving Equation of State
• Classicality of the primordial perturbations
• Exact Mapping between Tensor and Most General Scalar Power Spectra
• Bispectrum in Single-Field Inflation Beyond Slow-Roll
• Large Primordial Trispectra in General Single Field Inflation
• Primordial perturbations and non-Gaussianities in Hořava-Lifshitz gravity
• Non-Gaussianity Consistency Relation for Multi-field Inflation
• The Hunt for Primordial Interactions in the Large Scale Structures of the Universe
• Anisotropic Trispectrum of Curvature Perturbations Induced by Primordial Non-Abelian Vector Fields
• On the scalar consistency relation away from slow roll
• The clustering of galaxies and galaxy clusters: constraints on primordial non-Gaussianity from future wide-field surveys
• Stochastic Homology of Gaussian vs. non-Gaussian Random Fields: Graphs towards Betti Numbers and Persistence Diagrams
• Matter bounce cosmology with a generalized single field: non-Gaussianity and an extended no-go theorem
• Nongaussianity from Particle Production During Inflation
• On the squeezed limit of the bispectrum in general single field inflation
• Reconstruction of broad features in the primordial spectrum and inflaton potential from Planck
• Constraints on Kinetically Modified Inflation from WMAP5
• Observational imprints of enhanced scalar power on small scales in ultra slow roll inflation and associated non-Gaussianities
• Non-Gaussian Correlations Outside the Horizon
• Scale-Dependent Non-Gaussianity as a Generalization of the Local Model
• Imprints of primordial non-Gaussianity on the number counts of cosmic shear peaks
• Primordial Non-Gaussianities from the Trispectra in Multiple Field Inflationary Models
• Non-Gaussianities and tensor-to-scalar ratio in non-local $R^2$-like inflation
• Non-Gaussianity from resonant curvaton decay
• Untangling features in the primordial spectra
• Inflationary signatures of single-field models beyond slow-roll
• Testing the Early Universe with Anisotropies of the Gravitational Wave Background
• Probability of primordial black hole formation and its dependence on the radial profile of initial configurations
• $\alpha$-vacuum and inflationary bispectrum
• Gravitational Wave Background and Non-Gaussianity as a Probe of the Curvaton Scenario
• Non-Gaussianity in single field models without slow-roll
• The Conformal Transformation in General Single Field Inflation with Non-Minimal Coupling
• Limits on Second-Order Non-Gaussianity from Minkowski Functionals of WMAP Data
• Sudden variations in the speed of sound during inflation: features in the power spectrum and bispectrum
• Conservation of the nonlinear curvature perturbation in generic single-field inflation
• Multifield inflation beyond $N_{\mathrm{field}}=2$: non-Gaussianities and single-field effective theory
• Correlating correlation functions of primordial perturbations
• Non-Gaussianity of superhorizon curvature perturbations beyond $\delta$ N formalism
• Bimetric structure formation: non-Gaussian predictions
• On Non-Gaussianities in Multi-Field Inflation (N fields): Bi- and Tri-spectra beyond Slow-Roll
• Trispectrum from Ghost Inflation
• Supersymmetric DBI inflation
• Non-Gaussianity from Isocurvature Perturbations : Analysis of Trispectrum
• Consistency Relations for Non-Gaussianity
• Non-Gaussian corrections to the probability distribution of the curvature perturbation from inflation
• On the redundancy of operators and the bispectrum in the most general second-order scalar-tensor theory
• DBI inflation with a non-minimally coupled Gauss-Bonnet term
• Frame independent cosmological perturbations
• Numerically evaluating the bispectrum in curved field-space - with PyTransport 2.0
• Feeding your Inflaton: Non-Gaussian Signatures of Interaction Structure
• Loop contributions to the scalar power spectrum due to quartic order action in ultra slow roll inflation
• The degeneracy between primordial non-Gaussianity and foregrounds in 21cm intensity mapping experiments
• Baryon history and cosmic star formation in non-Gaussian cosmological models: numerical simulations
• Non-Gaussianities of Single Field Inflation with Non-minimal Coupling
• Could PBHs and secondary GWs have originated from squeezed initial states?
• Perturbations in stochastic inflation
• Cosmological Density Fluctuations in Stochastic Gravity -- Formalism and Linear Analysis --
• Examining the consistency relations describing the three-point functions involving tensors
• Uniqueness of the gauge invariant action for cosmological perturbations
• Non-Gaussianities in extended D-term inflation
• What Can We Learn by Combining the Skew Spectrum and the Power Spectrum?
• Vanishing of local non-Gaussianity in canonical single field inflation
• Warm DBI inflation with constant sound speed
• Transporting non-Gaussianity from sub to super-horizon scales
• Large fluctuations and Primordial Black Holes
• Consistency relations for sharp features in the primordial spectra
• Primordial Non-Gaussianity from G-inflation
• Multi-disformal invariance of nonlinear primordial perturbations
• The structure of correlation functions in single field inflation
• Fluid Inflation
• Curvature Perturbations from a Massive Vector Curvaton
• Three-form inflation and non-Gaussianity
• Primordial Non-Gaussianity Estimation using 21 cm Tomography from the Epoch of Reionization
• Observing nulling of primordial correlations via the 21 cm signal
• Isocurvature Perturbations and Non-Gaussianity of Gravitationally Produced Nonthermal Dark Matter
• One-loop corrections to the power spectrum in general single-field inflation
• Enhanced CMBR non-Gaussianities from Lorentz violation
• Single-Field Inflation After WMAP5
• Changes in the halo formation rates due to features in the primordial spectrum
• Proving the absence of large one-loop corrections to the power spectrum of curvature perturbations in transient ultra-slow-roll inflation within the path-integral approach
• Detectable primordial non-gaussianities and gravitational waves in k-inflation
• Seven Lessons from Manyfield Inflation in Random Potentials
• Gravitational Wave Constraints on Multi-Brane Inflation
• There and Back Again: Mapping and Factorising Cosmological Observables
• Why Must Primordial Non-Gaussianity Be Very Small?
• Why should primordial perturbations be in a vacuum state?
• Numerical evaluation of the three-point scalar-tensor cross-correlations and the tensor bi-spectrum
• Adiabaticity and the Fate of Non-Gaussianities: The Trispectrum and Beyond
• The Primordial Curvature Perturbation from Vector Fields of General non-Abelian Groups
• Anatomy of bispectra in general single-field inflation -- modal expansions
• Trispectrum estimation in various models of equilateral type non-Gaussianity
• Minimal cut-off vacuum state constraints from CMB bispectrum statistics
• Non-Gaussianity from Lifshitz Scalar
• Enhancing the cross-correlations between magnetic fields and scalar perturbations through parity violation
• The scale-dependent signature of primordial non-Gaussianity in the large-scale structure of cosmic reionization
• Primordial Spikes from Wrapped Brane Inflation
• Non-Gaussianities in models of inflation with large and negative entropic masses
• The scalar bi-spectrum during preheating in single field inflationary models
• Non-Gaussianity in multiple three-form field inflation
• On degenerate models of cosmic inflation
• Large Non-Gaussianity in Non-Minimally Coupled Derivative Inflation with Gauss-Bonnet Correction
• Tachyon Mediated Non-Gaussianity
• Robust predictions for an oscillatory bispectrum in Planck 2015 data from transient reductions in the speed of sound of the inflaton
• Loop Corrections to Cosmological Perturbations in Multi-field Inflationary Models
• Tilt and Running of Cosmological Observables in Generalized Single-Field Inflation
• Observational constraints on assisted k-inflation
• Sharp inflaton potentials and bi-spectra: Effects of smoothening the discontinuity
• Holographic non-Gaussianities in general single-field inflation
• Numerical evaluation of inflationary 3-point functions on curved field space
• On the Trispectrum of Galileon Inflation
• Halo statistics in non-Gaussian cosmologies: the collapsed fraction, conditional mass function, and halo bias from the path-integral excursion set method
• δN versus covariant perturbative approach to non-Gaussianity outside the horizon in multifield inflation
• Strong Coupling Problem with Time-Varying Sound Speed
• Gauge-invariant perturbations at second order in two-field inflation
• Perturbations and non-Gaussianities in three-form inflationary magnetogenesis
• Reheating constraints on modified single-field Natural Inflation models
• A note on Low Energy Effective Theory of Chromo Natural Inflation in the light of BICEP2 results
• Non-commutative Geometry Modified Non-Gaussianities of Cosmological Perturbation
• Trispectrum versus Bispectrum in Single-Field Inflation
• Nonlinear superhorizon perturbations of non-canonical scalar field
• Measuring the Energy Scale of Inflation with Large Scale Structures
• Quadra-Spectrum and Quint-Spectrum from Inflation and Curvaton Models
• Primordial Non-Gaussianity in Supersolid Inflation
• Non-Gaussian features from the inverse volume corrections in loop quantum cosmology
• Non-Gaussian Shape Recognition
• Primordial non-Guassianity in inflation with gravitationally enhanced friction
• Perturbative region on non-Gaussian parameter space in single-field inflation
• Effect of damped oscillations in the inflationary potential
• Thermal fluctuations in viscous cosmology
• Constraints on brane inflation after Planck 2015: Impacts of the latest local measurement of the Hubble constant
• Nonlinear curvature perturbations in an exactly soluble model of multi-component slow-roll inflation
• Adiabatic versus Isocurvature Non--Gaussianity
• Why does the effective field theory of inflation work?
• Complete Hamiltonian analysis of cosmological perturbations at all orders II: Non-canonical scalar field
• Mixed non-Gaussianity in multiple-DBI inflation
• Adiabatic regularization of power spectrum in nonminimally coupled general single-field inflation
• A weak lensing view on primordial non-Gaussianities
• Non-Gaussianity in multi-sound-speed disformally coupled inflation
• Conservation of $\zeta$ with radiative corrections from heavy field
• On primordial trispectrum from exchanging scalar modes in general multiple field inflationary models
• Thermal non-Gaussianity in holographic cosmology
• Anisotropic non-gaussianity with noncommutative spacetime
• Alternative approach to the Starobinsky model for inflation scenarios
• Fully non-linear equivalence of delta N and covariant formalisms
• Study in the noncanonical domain of Goldstone inflation
• Biased cosmological parameter estimation with galaxy cluster counts in the presence of primordial non-Gaussianities
• Inflationary Twin Models
• Gravity and non-gravity mediated couplings in multiple-field inflation
• Constraining primordial non-Gaussianity with cosmological weak lensing: shear and flexion
• Local observer effect on the cosmological soft theorem
• Testing gravity with non-Gaussianity
• Statistical nature of non-Gaussianity from cubic order primordial perturbations: CMB map simulations and genus statistic
• Covariant evolution of perturbations during reheating in two-field inflation
• Non-perturbative $\delta N$
• Thermal non-Gaussianity in Near-Milne universe
• Geometrical measures of non-Gaussianity generated from single field Inflationary models
• Non-Gaussianities in generalized non-local $R^2$-like inflation
• Rolling in the Modulated Reheating Scenario
• Analytical Insights into Constant-Roll Condition: Extending the Paradigm to Non-Canonical Models
• The Physical Content of Long Tensor Modes in Cosmology
• A note on second-order perturbations of non-canonical scalar fields
• The interplay of CMB temperature lensing power reconstruction with primordial non-Gaussianity of local type
• A new signature of primordial non-Gaussianities from the abundance of galaxy clusters
• Shapes and features of the primordial bispectrum
• Principal Components of CMB non-Gaussianity
• Effect of Dissipation on Warm Chromo-Natural Inflation
• Optimal bispectrum constraints on single-field models of inflation
• Non-Gaussian signatures of Tachyacoustic Cosmology
• Attractor Solutions in Tachyacoustic Cosmology
• Generating large primordial fluctuations in single-field inflation for PBH formation
• K-inflation: the legitimacy of classical treatment
• Incompatibility of Standard Galaxy Bias Models in General Relativity
• Connections between Minkowski and Cosmological Correlation Functions
• Lowering the self-coupling of the scalar field in a generalized Higgs inflation
• Supersymmetric Dirac-Born-Infeld Axionic Inflation and Non-Gaussianity
• Cosmological consequences of statistical inhomogeneity
• Superimposed Oscillations in Brane Inflation
• Probing Inflation with Precision Bispectra
• 'Constraint consistency' at all orders in Cosmological perturbation theory
• Constraints on primordial non-Gaussianity from Planck PR4 data
• The primordial non-Gaussianities for non-singular Horndeski cosmologies
• More on the Non-Gaussianity of Perturbations in a Non-Minimal Inflationary Model
• CMB constraints on noncommutative geometry during inflation
• Numerical evaluation of the tensor bispectrum in two field inflation
• Consistency Relation and Non-Gaussianity in a Galileon Inflation
• The scalar-scalar-tensor inflationary three-point function in the axion monodromy model
• A Proposal for Constraining Initial Vacuum by CMB
• Inflationary perturbations with Lifshitz scaling
• Unique contributions to the scalar bispectrum in `just enough inflation'
• Viable Intermediate Inflation in the Mimetic DBI Model
• Inflationary cross-correlations of a non-minimal spectator and their soft limits
• Testing a Two Field Inflation Beyond the Slow-Roll Approximation
• Signatures of Planck-scale interactions in the cosmic microwave background?
• Cosmological Perturbations in Inflationary Models with Anisotropic Space-Time Scaling in Lifshitz Background
• Inflation Story: slow-roll and beyond
• Primordial fluctuations in extended Liouville theory
• Ringing Non-Gaussianity from inflation with a step in the second derivative of the potential
• Inflationary study of non-Gaussianity using two-dimensional geometrical measures of CMB temperature maps
• Integrated Markov Chain Monte Carlo (MCMC) analysis of primordial non-Gaussianity (f_NL) in the recent CMB data
• A revisited Correction to the Halo Mass Function for local-type Primordial non-Gaussianity
• Non-Gaussian Signatures of a Thermal Big Bang