Prospects for Fundamental Physics from Line Intensity Mapping

Abstract

Line Intensity Mapping (LIM) is a technique for quickly performing surveys of large volumes at many frequencies but at low spatial resolution. These large survey volumes make LIM a promising method for constraining fundamental physics, such as beyond wCDM cosmology or extensions of Einstein Gravity in the coming decade. I will begin this talk with a presentation of LIM and synergies with photometric and spectroscopic galaxy surveys, in particular the Vera C. Rubin Observatory Legacy Survey of Space & Time (LSST) and surveys with the Subaru Observatory Prime Focus Spectrograph (PFS). After introducing forecasting results for fundamental physics with LIM, I will discuss how astrophysical uncertainties pose barriers to interpretation and conclude with an overview of prospects for machine learning and improved statistical methods to meet these challenges

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