17–20 Jun 2024
National Galleries of Scotland
Europe/London timezone

Memory burden effect in solitons: consequences for primordial black holes

19 Jun 2024, 15:30
20m
National Galleries of Scotland

National Galleries of Scotland

The Mound, Edinburgh, EH2 2EL Scotland

Speaker

Michael Zantedeschi (Tsung-Dao Lee Institute, Shanghai, China)

Description

The essence of the \textit{memory burden} effect is that a load of information carried by a system stabilizes it. This universal effect is especially prominent in systems with a high capacity of information storage, such as black holes and other objects with maximal microstate degeneracy, the entities universally referred to as \textit{saturons}. The phenomenon has several implications. The memory burden effect suppresses a further decay of a black hole, the latest, after it has emitted about half of its initial mass. As a consequence, the light primordial black holes (PBHs), that previously were assumed to be fully evaporated, are expected to be present as viable dark matter candidates. In this talk I will review the memory burden effect and establish a precise correspondence in solitons and in black holes.
Finally, I will identify cer

Primary author

Michael Zantedeschi (Tsung-Dao Lee Institute, Shanghai, China)

Presentation materials