Research · Early-universe physics
PBHs before reheating
An open lab notebook on numerical relativity. Could asteroid-mass primordial black holes — formed in an early matter-dominated era — be the dark matter? The central quantity is the collapse threshold: how strong a curvature peak must be to become a black hole before the dust era ends.
- pbhgr GR collapse code
- PBHVlasov 3D particle module
- Open code, data & log