I will discuss recent and ongoing work focused on attempts to
restore concordance amongst cosmological data sets, motivated by
discrepancies amongst some inferences of the cosmic expansion rate
(H_0) and the matter clustering amplitude (S_8). I...
Abstract: When Kerr black holes rotate at
their maximally allowed angular velocity, they are said to be
extremal. Extremal black holes are critical solutions to Einstein’s
equations of general relativity. They exhibit several interesting
phenomena...
Rotating plasma disks orbiting a central object, like a black
hole, are ubiquitous in the universe. However, questions regarding
their dynamical evolution, such as the mechanisms of angular
momentum transport and the role of magnetic fields in...
Centers of galaxies are fertile environments for a variety of
dynamical processes, owing to the high density of stars and the
presence of a central supermassive black hole. Stars may
occasionally be deflected onto a deadly trajectory, passing
too...
In this talk, I’ll survey some of the major open questions in
particle physics and make the case that they can best be addressed
by a qualitatively new type of particle accelerator: a high-energy
muon collider. Recent progress on long-standing...
The point particle approximation is widely used in the study of
planetary dynamics. While this zeroth order approximation is often
a very good one, in many cases of interest crucial aspects of the
dynamics are lost if the effects of structure are...
