Soft-Hair Antimatter Vacuum Phase Transition and Dynamical Dark Energy

This paper proposes an innovative model uniting quantum gravity and modern cosmology: primordial antimatter that survived early annihilation did not vanish; instead, it was securely encoded and stored within the event horizons of primordial black holes (PBHs) via Stephen Hawking's "Soft Hair" mechanism, thereby evading early annihilation crises. Over the past three billion years, as PBHs with a mass peak of $M_0 \simeq 5 \times 10^{11}\text{ kg}$ reached their critical evaporation lifetimes, macro-scopic topological vacuum phase transitions occurred in their horizon quantum states, converting the stored antimatter energy into dynamical dark energy with negative pressure. #Quantum Gravity,# Primordial Black Holes,# Dark Energy, #Cosmological Tension