CMB spectral distortion measurements are going to be challenging and multiple groups are considering experimental approaches that might allow us to target these small signals in the near and distant future. In my talk I will give a brief overview of all the ongoing and planned CMB spectrometer concepts and initiatives trying in particular to highlight synergies and individual strengths. I will...
Ground-based CMB experiments are evolving from fielding thousands of detectors on telescope(s) of a single size at a single observing site in the last decade (eg. the Atacama Cosmology Telescope, BICEP/Keck, Polarbear/Simons Array, and South Pole Telescope), through tens of thousands of detectors on telescopes of multiple sizes at a single observing site in this decade (the South Pole...