Primordial Black Holes from Confinement

Understand

A mechanism for the formation of primordial black holes is proposed.

• Here, heavy quarks of a confining gauge theory produced by de Sitter fluctuations are pushed apart by inflation and get confined after horizon re-entry.
• The large amount of energy stored in the colour flux tubes connecting the quark pair leads to black-hole formation.
• These are much lighter and can be of higher spin than those produced by standard collapse of horizon-size inflationary overdensities.