Marc Kamionkowski

Topic: "The Cosmic Microwave Background: Beyond the Power Spectrum"  (Video)

Abstract: Virtually all the information we've obtained from the cosmic microwave background (CMB) about cosmological parameters and the early Universe comes from measurements of the temperature power spectrum or, equivalently, the temperature two-point correlation function. However, a variety of higher-order correlations, and the polarization, may encode a wealth of additional information on the early Universe, the physics of cosmic acceleration, and the distribution of matter at low redshifts. I will discuss some of these new signatures as well as the physical scenarios they probe.