In this talk I will describe recent progress in applying tools
from collider physics to problems in classical general relativity.
This program has produced state-of-the-art calculations of the
conservative two-body Hamiltonian at the fourth order in...
Observations of redshifted 21-cm emission of neutral hydrogen
over a wide range of radio frequencies allow us to access redshifts
that encompass a vast comoving volume, including the era of dark
energy. In this talk, I will present the Hydrogen...
There is a running perception among nuclear experts and
physicists that nuclear fusion is 20 years away; always has been,
and always will be. Greg Piefer understands the challenge of
mastering nuclear fusion as a sustainable, clean energy
source...
Cosmological simulations of galaxy formation have evolved
significantly over the last decade. In my talk I will describe
recent efforts to model the large-scale distribution of galaxies
with cosmological hydrodynamical simulations. The focus of
the...
Dwarf galaxies (Mstar 1e8 Msun) are increasingly becoming an
area of interest, not only for Local Group studies and for dark
matter profiles but also as contributors to reionization and the
chemical enrichment of the inter-galactic medium (IGM)...
We are the first generation of human beings able to directly
observe and study the cosmic era when the first galaxies and black
holes formed. Quasars are among the most luminous sources known and
can be studied in detail even during the first...
To-date attempts at identifying dark matter from its
non-gravitational interactions have come up empty. In the era of
big data cosmology an equally promising approach is to narrow down
the identity of dark matter from its gravitational
interactions...
