• Corpus ID: 253265051

Primordial non-gaussianity up to all orders: theoretical aspects and implications for primordial black hole models

@inproceedings{Ferrante2022PrimordialNU,
  title={Primordial non-gaussianity up to all orders: theoretical aspects and implications for primordial black hole models},
  author={Giacomo Ferrante and Gabriele Franciolini and Antonio Iovino and Alfredo Urbano},
  year={2022}
}
We develop an exact formalism for the computation of the abundance of primordial black holes (PBHs) in the presence of local non-gaussianity (NG) in the curvature perturbation field. For the first time, we include NG going beyond the widely used quadratic and cubic approximations, and consider a completely generic functional form. Adopting threshold statistics of the compaction function, we address the computation of the abundance both for narrow and broad power spectra. While our formulas are… 
3 Citations

Non-perturbative non-Gaussianity and primordial black holes

We present a non-perturbative method for calculating the abundance of primordial black holes given an arbitrary one-point probability distribution function for the primordial curvature perturbation,

Observational imprints of enhanced scalar power on small scales in ultra slow roll inflation and associated non-Gaussianities

The discovery of gravitational waves from merging binary black holes has generated considerable interest in examining whether these black holes could have a primordial origin. If a significant number

Bayesian implications for the primordial black holes from NANOGrav's pulsar-timing data by using the scalar induced gravitational waves

. Assuming that the common-spectrum process in the NANOGrav 12.5-year dataset has an origin of scalar induced gravitational waves, we study the enhancement of primordial curvature perturbations and

References

SHOWING 1-10 OF 10 REFERENCES

and a at

The xishacorene natural products are structurally unique apolar diterpenoids that feature a bicyclo[3.3.1] framework. These secondary metabolites likely arise from the well-studied, structurally

arXiv:2205.01597 [gr-qc

  • Living Rev. Rel. 25,
  • 2022

and s

Class

  • Quant. Grav. 35, 063001
  • 2018

Germani and I . Musco

  • Phys . Rev . Lett . Phys . Rev . Lett . Class . Quant . Grav .

Astron

  • Astrophys. 660, A26
  • 2022

NANOGrav), Astrophys

  • J. Lett. 905,
  • 2020

Same as in fig. 13 but with the center of the power series expansion that is now set by ζG = 0.5 (see text for details

    Nature 253

    • 251
    • 1975

    Universe 7

    • 398
    • 2021