Probing the scale dependence of non-Gaussianity with spectral distortions of the cosmic microwave background

@inproceedings{Emami2015ProbingTS,
  title={Probing the scale dependence of non-Gaussianity with spectral distortions of the cosmic microwave background},
  author={Razieh Emami and Emanuela Dimastrogiovanni and Jens Chluba and Marc Kamionkowski},
  year={2015}
}
Many inflation models predict that primordial density perturbations have a nonzero three-point correlation function, or bispectrum in Fourier space. Of the several possibilities for this bispectrum, the most commmon is the local-model bispectrum, which can be described as a spatial modulation of the small-scale (large-wavenumber) power spectrum by long-wavelength density fluctuations. While the local model predicts this spatial modulation to be scale-independent, many variants have some scale… CONTINUE READING

Create an AI-powered research feed to stay up to date with new papers like this posted to ArXiv

Figures from this paper.

Citations

Publications citing this paper.
SHOWING 1-10 OF 17 CITATIONS

Primordial trispectra and CMB spectral distortions

VIEW 3 EXCERPTS
CITES METHODS & BACKGROUND
HIGHLY INFLUENCED