Conveners
Plenary Session: Introduction and PBH overview
- Ilia Musco (Istituto Nazionale di Fisica Nucleare, Rome)
Plenary Session: PBH Formation
- Ilia Musco (Istituto Nazionale di Fisica Nucleare, Rome)
Plenary Session: PBHs from single field inflation
- Alfredo Leonardo Urbano (Istituto Nazionale di Fisica Nucleare)
Plenary Session: PBHs pollution and merger rate
- Paolo Pani (Istituto Nazionale di Fisica Nucleare)
Plenary Session: PBHs and Gravitational Waves
- Paolo Pani (Istituto Nazionale di Fisica Nucleare)
Plenary Session: PBH and Dark Matter
- Christian Byrnes (University of Sussex)
This talk presents a historical perspective of the study of primordial black holes (PBHs), my first talk on the subject being 50 years since. PBH papers have usually focused on constraints on their abundance, this having interesting implications for cosmology even if they never formed. However, in recent years attention has turned to the possibility that they might actually exist and solve...
Primordial black holes may have been formed from sufficiently large amplitude perturbations in the early Universe. The central aim of the formation studies is to predict the abundance and other properties of PBHs, given the cosmological scenario. Both numerical relativity simulations and analytical investigations play an important role. In this talk I will introduce some of the recent...
From the origin of the merging compact objects seen by LIGO-Virgo-KAGRA to the source of the stochastic gravitational waves seen by pulsar timing arrays via the QCD transition, there is a happy coincidence of scales which could point to primordial black holes. Combined with the long running dark matter search and hunt for new observables from inflation, there are many reasons to hope to learn...
In this talk, I discuss one-loop quantum correction to the spectrum of curvature perturbation in inflationary models with enhanced power spectrum on small scale due to the so-called ultra slow-roll
behavior.
I shall present some details how to compute the PBH merger rate and show results of a dedicated simulation of PBH clustering at the early Universe. I apply the results to fit LIGO data and derive constraints on PBH abundance. I discuss the possibility that LIGO has observed two populations of black holes, astrophysical and primordial.
Primordial Black Holes (PBHs) might comprise a significant fraction of dark matter in the Universe and can give rise to observable signatures in current and future gravitational wave (GW) experiments. Focusing on PBHs in the mass range probed by the LIGO/Virgo/Kagra detectors, I will present the results of Bayesian multi-population inference on the most recent dataset. The analysis includes a...
With modern and upcoming surveys providing ever tightening constraints, and even potential detections, it is becoming more important than ever to make robust and precise calculations for the abundance of primordial black holes (PBHs). Their abundance depends strongly on the primordial power spectrum, and constraints on the PBH abundance have historically been used to place unique constraints...
I will discuss the interplay between the phenomenology of primordial black holes and the dark matter searches. I will first briefly review the most relevant constraints on PBH abundance, highlighting the caveats and uncertainties. Then, I will discuss how a sub-dominant component of PBHs interacts with the bulk of the DM. In particular, I will describe how a DM "mini-halo" is expected to form...
