Probing the inflationary particle content: extra spin-2 field
arXiv:1806.00850 · doi:10.1088/1475-7516/2018/08/016
Abstract
We study how inflationary observables associated with primordial tensor modes are affected by coupling the minimal field content with an extra spin-2 particle during inflation. We work with a model that is ghost-free at the fully non-linear level and show how the new degrees of freedom modify standard consistency relations for the tensor bispectrum. The extra interacting spin-2 field is necessarily massive and unitarity dictates its mass be in the range. Despite the fact that this bound selects a decaying solution for the corresponding tensor mode, cosmological correlators still carry the imprints of such "fossil" fields. Remarkably, fossil(s) of spin generate distinctive anisotropies in observables such as the tensor power spectrum. We show how this plays out in our set-up.
arXiv comment25 pages, 3 figures
References in corpus (94)
- Non-Gaussian features of primordial fluctuations in single field inflationary models
- Resummation of Massive Gravity
- Generalization of the Fierz-Pauli Action
- Massive Gravity
- The Effective Field Theory of Inflation
- Quantum Contributions to Cosmological Correlations
- Cosmological Backgrounds of Gravitational Waves
- Bimetric Gravity from Ghost-free Massive Gravity
- Effective Field Theory for Massive Gravitons and Gravity in Theory Space
- Single field consistency relation for the 3-point function
- Primordial Non-Gaussianities from Inflation Models
- Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Are There Cosmic Microwave Background Anomalies?
- Quasi-Single Field Inflation and Non-Gaussianities
- Planck 2013 results. XXIII. Isotropy and statistics of the CMB
- The shape of non-Gaussianities
- Science with the space-based interferometer LISA. IV: Probing inflation with gravitational waves
- An introduction to the Vainshtein mechanism
- The Quest for B Modes from Inflationary Gravitational Waves
- Large Nongaussianity in Axion Inflation
- Interacting Spin-2 Fields
- On Soft Limits of Inflationary Correlation Functions
- Large non-Gaussianities with Intermediate Shapes from Quasi-Single Field Inflation
- Chiral Primordial Gravitational Waves from a Lifshitz Point
- Parity violation in the Cosmic Microwave Background from a pseudoscalar inflaton
- Quantum Contributions to Cosmological Correlations II: Can These Corrections Become Large?
- Inconsistency of interacting, multi-graviton theories
- Solid Inflation
- Non-Gaussianity as a Particle Detector
- Estimators for CMB Statistical Anisotropy
- Cosmic Microwave Background Statistics for a Direction-Dependent Primordial Power Spectrum
- Gravity waves and non-Gaussian features from particle production in a sector gravitationally coupled to the inflaton
- Symmetries and Consistency Relations in the Large Scale Structure of the Universe
- Semiclassical relations and IR effects in de Sitter and slow-roll space-times
- Stability of Massive Cosmological Gravitons
- Scale-dependent gravitational waves from a rolling axion
- Gauge Fields and Inflation: Chiral Gravitational Waves, Fluctuations and the Lyth Bound
- Primordial Gravitational Waves from Axion-Gauge Fields Dynamics
- Non-Gaussianities and chiral gravitational waves in natural steep inflation
- Perturbations in Chromo-Natural Inflation
- Stability analysis of chromo-natural inflation and possible evasion of Lyth's bound
- Galilean invariance and the consistency relation for the nonlinear squeezed bispectrum of large scale structure
- An Infinite Set of Ward Identities for Adiabatic Modes in Cosmology
- Bayesian analysis of sparse anisotropic universe models and application to the 5-yr WMAP data
- Multiple field inflation
- Cosmological Stability Bound in Massive Gravity and Bigravity
- Limits on anisotropic inflation from the Planck data
- The "in-in" Formalism and Cosmological Perturbations
- Cosmological perturbations in Massive Gravity and the Higuchi bound
- Finding the chiral gravitational wave background of an axion-SU(2) inflationary model using CMB observations and laser interferometers
- Clustering Fossils from the Early Universe
- Productive Interactions: heavy particles and non-Gaussianity
- Axion Inflation with an SU(2) Gauge Field: Detectable Chiral Gravity Waves
- Heavy spin-2 Dark Matter
- Loop Corrections to Standard Model Fields in Inflation
- New Sources of Gravitational Waves during Inflation
- An inflationary model with small scalar and large tensor nongaussianities
- Rolling axions during inflation: perturbativity and signatures
- Partially Massless Fields During Inflation
- Large Tensor Non-Gaussianity from Axion-Gauge Fields Dynamics
- Imprints of Massive Primordial Fields on Large-Scale Structure
- Enhancing Inflationary Tensor Modes through Spectator Fields
- On the Inflationary Perturbations of Massive Higher-Spin Fields
- Large non-Gaussianities in the Effective Field Theory Approach to Single-Field Inflation: the Bispectrum
- Cosmological perturbations in massive bigravity
- Effects of parity violation on non-gaussianity of primordial gravitational waves in Hořava-Lifshitz gravity
- Primordial gravitational waves in supersolid inflation
- Inflationary tensor fossils in large-scale structure
- Slavnov-Taylor Identities for Primordial Perturbations
- Distinctive signatures of space-time diffeomorphism breaking in EFT of inflation
- Anisotropic imprint of long-wavelength tensor perturbations on cosmic structure
- Tensor Non-Gaussianity from Axion-Gauge-Fields Dynamics : Parameter Search
- Inflationary Correlation Functions without Infrared Divergences
- New Kinetic Interactions for Massive Gravity?
- Gauge-flation confronted with Planck
- Low-Energy Effective Field Theory for Chromo-Natural Inflation
- The real shape of non-Gaussianities
- Imprints of Spinning Particles on Primordial Cosmological Perturbations
- Non-detection of a statistically anisotropic power spectrum in large-scale structure
- Soft-Pion Theorems for Large Scale Structure
- Detecting higher spin fields through statistical anisotropy in the CMB and galaxy power spectra
- On CMB B-Mode Non-Gaussianity
- Breaking discrete symmetries in the effective field theory of inflation
- Rapid field excursions and the inflationary tensor spectrum
- CMB Scale Dependent Non-Gaussianity from Massive Gravity during Inflation
- Fossilized Gravitational Wave Relic and Primordial Clocks
- Anisotropic tensor power spectrum at interferometer scales induced by tensor squeezed non-Gaussianity
- Examining the consistency relations describing the three-point functions involving tensors
- Statistically Anisotropic Tensor Modes from Inflation
- Non-Gaussian inflationary shapes in theories beyond Horndeski
- Effective Field Theory of Broken Spatial Diffeomorphisms
- Tensor Modes in Bigravity: Primordial to Present
- Primordial Non-Gaussianity of Gravitational Waves in Hořava-Lifshitz Gravity
- Possible Signatures of Inflationary Particle Content: Spin-2 Fields
- Nonlinear Evolution of Anisotropic Cosmological Power
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- Shapes of gravity: Tensor non-Gaussianity and massive spin-2 fields
- Large Spin-2 Signals at the Cosmological Collider
- Non-Gaussianity from Axion-Gauge Fields Interactions during Inflation
- Cosmological Signatures of Superheavy Dark Matter
- The Hunt for Primordial Interactions in the Large Scale Structures of the Universe
- Searching for Fossil Fields in the Gravity Sector
- Disentangling mass spectra of multiple fields in cosmological collider
- Cosmological gravitational particle production of massive spin-2 particles
- Heavy Spinning Particles from Signs of Primordial Non-Gaussianities: Beyond the Positivity Bounds
- Axion Isocurvature Collider
- Squeezed tensor non-Gaussianity in non-attractor inflation
- A new mechanism to enhance primordial tensor fluctuations in single field inflation
- Continuous Spectrum on Cosmological Collider
- Tensor non-Gaussianities from Non-minimal Coupling to the Inflaton
- On the (A)dS Decoupling Limits of Massive Gravity
- Generation of Primordial Black Holes and Gravitational Waves from Dilaton-Gauge Field Dynamics
- Interferometer Constraints on the Inflationary Field Content
- CMB B-mode non-Gaussianity: optimal bispectrum estimator and Fisher forecasts
- Small-scale Tests of Inflation
- Combining cosmological and local bounds on bimetric theory
- Analytic Formulae for Inflationary Correlators with Dynamical Mass
- Perturbative unitarity in quasi-single field inflation
- Primordial Stochastic Gravitational Wave Background Anisotropies: in-in Formalization and Applications
- Primordial Tensor Non-Gaussianity from Massive Gravity
- Bispectrum Islands
- Spinning Guest Fields during Inflation: Leftover Signatures
- Stochastic gravitational wave background anisotropies from inflation with non-Bunch-Davies states
- On the importance of heavy fields in pseudo-scalar inflation