PIRSA:21040032

Video URL

https://pirsa.org/21040032

Precision cosmology with the next generation of CMB and optical surveys

Madhavacheril, M. (2021). Precision cosmology with the next generation of CMB and optical surveys. Perimeter Institute for Theoretical Physics. https://pirsa.org/21040032

Madhavacheril, Mathew. Precision cosmology with the next generation of CMB and optical surveys. Perimeter Institute for Theoretical Physics, Apr. 27, 2021, https://pirsa.org/21040032 

          @misc{ scivideos_PIRSA:21040032,
            doi = {10.48660/21040032},
            url = {https://pirsa.org/21040032},
            author = {Madhavacheril, Mathew},
            keywords = {Cosmology},
            language = {en},
            title = {Precision cosmology with the next generation of CMB and optical surveys},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2021},
            month = {apr},
            note = {PIRSA:21040032 see, \url{https://scivideos.org/index.php/pirsa/21040032}}
          }

Mathew Madhavacheril University of Pennsylvania

Talk numberPIRSA:21040032
DOI10.48660/21040032
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Ground-based cosmic microwave background (CMB) experiments are now pushing into discovery space where new insights on inflation, dark matter, dark energy and neutrino physics will be obtained by unraveling signatures buried beneath the primordial fluctuations. I will present new results from the Atacama Cosmology Telescope (ACT) that exemplify the power of high-resolution measurements of the microwave sky, including high-fidelity maps of dark matter through gravitational lensing. These maps set the stage for a robust measurement of the neutrino mass scale and hierarchy with upcoming ACT and Simons Observatory data. I will also discuss a new proposal for dramatically improving the sensitivity to primordial non-Gaussianity using measurements of the cosmic velocity field, and sketch a path towards using this technique to detect or rule out multi-field inflation using a combination of upcoming CMB data from the Simons Observatory and optical galaxy data from the Vera Rubin Observatory.