Primordial Black Hole Formation from Phase Transitions: A Review

This paper provides a concise review of primordial black hole (PBH) formation mechanisms originating from first-order phase transitions in the early universe. It's valuable for researchers interested in PBHs and early universe cosmology, offering a consolidated overview of various model-dependent and independent mechanisms. The inclusion of model-specific examples aids in understanding the practical implications of these mechanisms.

• •Reviews PBH formation from first-order phase transitions.
• •Discusses model-dependent and independent mechanisms.
• •Relates mechanisms to PBH properties.
• •Provides model-specific examples.