Effective field theory of statistical anisotropies for primordial bispectrum and gravitational waves

Understand

We present the effective field theory studies of primordial statistical anisotropies in models of anisotropic inflation.

• The general action in unitary gauge is presented to calculate the leading interactions between the gauge field fluctuations, the curvature perturbations and the tensor perturbations.
• The anisotropies in scalar power spectrum and bispectrum are calculated and the dependence of these anisotropies to EFT couplings are presented.
• In addition, we calculate the statistical anisotropy in tensor power spectrum and the scalar-tensor cross correlation.