4 papers
Catastrophic Inflation in the Axiverse
Naomi Gendler, Oliver Janssen, Matthew Kleban +1
In the landscape of compactifications of type IIB string theory on O3/O7 orientifolds of Calabi--Yau threefolds, we identify regions of the axion potential in specific geometries t…
Accretion of Primordial Black Holes in Stellar Interiors
Matteo Cantiello, Ore Gottlieb, Cameron Norton +2
We study spherical accretion onto primordial black holes (PBHs) embedded in the core of a solar-type star. We compute the radiative efficiency self-consistently for the first time…
The Life and Death of Stars That Capture Primordial Black Holes
Ore Gottlieb, Matteo Cantiello, Cameron Norton +2
Primordial black holes (PBHs) in the asteroid mass window () remain viable dark matter candidates and can be captured by stars. We develop the first globa…
Tunneling from an oscillating initial state in quantum mechanics
Oliver Janssen, Matthew Kleban, Cameron Norton
We study the decay of general initial states out of a metastable potential well in quantum mechanics. We provide a closed-form expression for the probability current that tunnels t…