18 citations · 48 across the 11 of their papers we have counts for
5 papers · 1 filter
Incentivizing supplemental math assignments and using AI-generated hints is associated with improved exam performance
Yifan Lu, K. Supriya, Shanna Shaked +2
Inequities in student access to trigonometry and calculus are often associated with racial and socioeconomic privilege, and often influence introductory physics course performance.…
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…
New ideas on the formation and astrophysical detection of primordial black holes
Marcos M. Flores, Alexander Kusenko
Recently, a number of novel scenarios for primordial black hole (PBH) formation have been discovered. Some of them require very minimal new physics, some others require no new ingr…
Direct-collapse supermassive black holes from relic particle decay
Yifan Lu, Zachary S. C. Picker, Alexander Kusenko
We investigate the formation of high-redshift supermassive black holes (SMBHs) via the direct collapse of baryonic clouds, where the unwanted formation of molecular hydrogen is suc…
Revisiting formation of primordial black holes in a supercooled first-order phase transition
Marcos M. Flores, Alexander Kusenko, Misao Sasaki
We reexamine production of primordial black holes in a supercooled phase transition. While a mere overdensity associated with a surviving false-vacuum patch does not imply formatio…