Effective Field Theory of Anisotropic Inflation and Beyond

Abstract

We develop an effective-field-theory (EFT) framework for inflation with various symmetry breaking pattern. As a prototype, we formulate anisotropic inflation from the perspective of EFT and construct an effective action of the Nambu-Goldstone bosons for the broken time translation and rotation symmetries. We also calculate the statistical anisotropy in the scalar two-point correlation function for concise examples of the effective action.

19 pages; matches published version

References in corpus (15)

• The Effective Field Theory of Inflation
• Observational Signatures and Non-Gaussianities of General Single Field Inflation
• Inflationary Universe with Anisotropic Hair
• Instability of anisotropic cosmological solutions supported by vector fields
• The Nature of Primordial Fluctuations from Anisotropic Inflation
• Cosmic Microwave Background Statistics for a Direction-Dependent Primordial Power Spectrum
• Scalar-Scalar, Scalar-Tensor, and Tensor-Tensor Correlators from Anisotropic Inflation
• Anisotropic Power-law Inflation
• Instability of the ACW model, and problems with massive vectors during inflation
• Asymmetric Beams and CMB Statistical Anisotropy
• Imprints of anisotropic inflation on the cosmic microwave background
• Anisotropic non-Gaussianity from vector field perturbations
• Generalised tensor fluctuations and inflation
• Creating Statistically Anisotropic and Inhomogeneous Perturbations
• Bayesian Limits on Primordial Isotropy Breaking

Cited by in corpus (7)

• The Effective Field Theory of Vector-Tensor Theories
• Effective description of generalized disformal theories
• Inflation with multiple vector fields and non-Gaussianities
• Anisotropic separate universe and Weinberg's adiabatic mode
• Effective Field Theory of Gravitating Continuum: Solids, Fluids, and Aether Unified
• Cosmic No-hair Conjecture and Inflation with an SU(3) Gauge Field
• Effective Field Theory of Chiral Gravitational Waves