9 citations · 22 across the 29 of their papers we have counts for
6 papers · 1 filter
A New Census of the Universe's Entropy
Stefano Profumo, Liam Colombo-Murphy, Gabriela Huckabee +4
The question of what is the total entropy of the universe, how it compares to the maximal entropy of de Sitter space, and how it is distributed across the universe's components, be…
Super-exponential Primordial Black Hole Production via Delayed Vacuum Decay
Yanda Wu, Stefano Profumo
If a cosmological first-order phase transition occurs sufficiently slowly, delayed vacuum decay may lead to the formation of primordial black holes. Here we consider a simple model…
Black Hole Explosions as Probes of New Physics
Kevin Federico, Stefano Profumo
The final stage of black hole evaporation is a potent probe of physics beyond the Standard Model: Hawking-Bekenstein radiation may be affected by quantum gravity "memory burden eff…
Black Holes from Fermi Ball Collapse
Yifan Lu, Zachary S. C. Picker, Stefano Profumo +1
Fermi balls are non-topological solitons that can naturally form in an early universe containing a dark sector with heavy fermions and an attractive interaction mediated by a light…
The Maximal Gravitational Wave Signal from Asteroid-Mass Primordial Black Hole Mergers At Resonant Microwave Cavities
Stefano Profumo, Lucas Brown, Christopher Ewasiuk +2
Primordial black holes can be the entirety of the dark matter in a broad, approximately five-orders-of-magnitude-wide mass range, the ``asteroid mass range'', between $10^{-16}\ M_…
Ultralight Primordial Black Holes
Stefano Profumo
The fate of ultralight black holes depends on whether or not evaporation stops at or around the Planck scale. If evaporation stops, the general expectation is that a population of…