5–10 Jul 2021
Europe/Rome timezone

Session

Effects of Primordial Perturbations Enhancement: from Black Holes Formation to CMB Anomalies

CM4
8 Jul 2021, 16:30

Conveners

Effects of Primordial Perturbations Enhancement: from Black Holes Formation to CMB Anomalies: Block 1

  • Krzysztof Turzynski (University of Warsaw, Faculty of Physics)
  • Antonio Enea Romano (UDEA/CERN)

Description

There are several important phenomena associated to the enhancement of primordial perturbation, such as the production of primordial black holes (PBH), or local modifications of the cosmic microwave background (CMB) spectrum. General model-independent considerations suggest two main mechanisms which can lead to the enhancement: a temporary violation of the slow-roll conditions during inflation, or the presence of large primordial non adiabatic or anisotropic perturbations.
In this section, we will focus on the different theoretical scenarios proposed to produce the perturbations enhancement, on its observational effects on PBHs and CMB, and on the advantages of adopting a model independent approach. In the context of PBHs, special attention will be devoted to the numerical simulations of the PBHs formation, and to the effects of the shape of the peaks of perturbations. We also invite all other theoretical ideas about the enhancement of primordial perturbations and PBH production originating from inflationary or post-inflationary dynamics.

Presentation materials

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