Fundamental Physics from Future Spectroscopic Surveys

Session

Session 2

6 May 2024, 10:45

Auditorium (Building 50)

Conveners

Session 2: Theoretical Modeling and Higher Order Statistics

• Martin White

9. Fundamental Physics from Galaxy Surveys

Prof. Mikhail Ivanov (MIT)

06/05/2024, 10:45

I will present a new program of probing fundamental cosmology with spectroscopic galaxy surveys. This program builds on ideas of effective field theory and allows for sub-percent precision analytic understanding of galaxy clustering on large scales. I will highlight recent results of this program that include new measurements of fundamental cosmological parameters and constraints on new...

7. Non-Gaussian Statistics for Non-Gaussian Physics

Dr Oliver Philcox (Columbia University / Simons Foundation)

06/05/2024, 11:15

What statistics do we need to search for new physics? I will present a pedagogical overview of statistics beyond the galaxy power spectrum, and how they can be used to probe a wide variety of non-standard physics in inflation and beyond.

36. Higher-order statistics as probes for parity symmetry

Jiamin Hou (UF / MPE)

06/05/2024, 11:45

Parity symmetry, which posits the conservation of physical laws under spatial inversion, was initially presumed to extend from macroscopic phenomena down to subatomic scales. However, its applicability at cosmological scales remains largely unexplored. In this talk, I will briefly review using the galaxy four-point functions to search for parity violation at cosmological scales. In addition, I...

44. Promising Results and Prospective Probes of Parity

Prof. Zachary Slepian (University of Florida)

06/05/2024, 12:00

In this talk, I will outline our recent work on the SDSS BOSS 4-point correlation function and an apparent 7 sigma detection of parity violation. Then I will provide an update on progress with the Year 1 DESI data. I will conclude with a presentation of two new methods to ensure that the apparent result is of genuine cosmological origin.