Levon Pogosian, Simon Fraser University


Past Event

Levon Pogosian, Simon Fraser University

March 18, 2019
2:10 PM - 3:10 PM
Pupin Hall Theory Center, 8th Floor

Cosmic microwaves and smoking guns

Large scale B-mode patterns in CMB polarization, if detected, would constitute a “smoking gun” signature of primordial gravitational waves generated during an inflationary phase in the early universe. In this talk, I will discuss other sources of B-modes, such as primordial magnetic fields, axion-like fields and cosmic strings, and prospects of isolating their distinguishing features with future CMB measurements.