This white paper addresses key challenges for the design of next-decade Cosmic Microwave Background (CMB) experiments and for assessing their capability to extract cosmological information from CMB polarization. We argue that it is critical to develop more robust analysis and simulation tools if any of these experiments is to realize its promise.

The research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.

Astro2020: Decadal Survey on Astronomy and Astrophysics, APC white papers: et al.