Speaker
Neelima Sehgal
Description
CMB experiments have contributed powerful constraints on the fundamental physics and astrophysics of the Universe. Current CMB experiments, such as the Simons Observatory, are poised to extend this progress even further. However, CMB experiments still have a wealth of information to offer beyond near-term facilities, including probing the properties of dark matter, inflation, and light relic particles. In particular, a much lower-noise and higher-resolution wide-area CMB survey can cross a number of critical fundamental physics thresholds and open a relatively untapped window of small-scale, late-time CMB anisotropies. Here I will discuss CMB-HD, a next-generation CMB facility, as well as the discoveries it can enable.