Physics Frontiers Episode 79: Primordial Black Holes with QCD Color Charge with Elba Alonso-Monsalve and David Kaiser
5 snips
Sep 4, 2024 Elba Alonso-Monsalve, an expert on dark matter and primordial black holes, teams up with David Kaiser, a researcher investigating black hole formation from matter distribution. They delve into the fascinating idea that tiny black holes could explain dark matter, formed during cosmic inflation. The discussion highlights the distinction between primordial and regular black holes, and the role of quantum chromodynamics. They explore implications for early universe conditions and screening effects in curved space-time, illuminating new avenues in cosmology.
AI Snips
Chapters
Transcript
Episode notes
Primordial Black Holes as Dark Matter
- Primordial black holes (PBHs) are a dark matter candidate formed in the early universe.
- Unlike regular black holes, PBHs form from density fluctuations, not stellar collapse.
PBH Formation and Mass Range
- Primordial black holes (PBHs) form much earlier than regular black holes, bypassing stellar evolution.
- Their mass can range from exponentially smaller to larger than our sun's mass.
Constraints on PBH Mass
- PBH mass is constrained by Hawking radiation and gravitational lensing observations.
- PBHs below a certain mass would have evaporated, while larger ones would cause detectable lensing.