Title：Probing the Universe beyond the Two-Point Statistics

Speaker：Dr. Jiamin Hou

Time：10:00 am Dec. 22th (Friday)

Tencent Meeting：576-157-8290 password: 6360

Location: Galaxy Lecture Hall, 19th floor

Abstract：

“Galaxies’ 3D field encodes invaluable information about the origin and the evolution of the Universe. Whilst current standard cosmological analyses have focused on two-point statistics, higher-order statistics consequently helps further to tighten constraints, break parameter degeneracies, and probe fundamental physics. In this talk, I will briefly review the progress in the past, then focus on various beyond two-point statistics estimator and alternative parameter inference approaches. Furthermore, I will present our data analysis on the galaxy sample with four-point correlation functions, which provide insights into parity symmetry at cosmological scales. I will also discuss some future aspects of extending the analysis, including models and connection with other observables. In addition, I will also discuss an alternative interpretation of the basis that we choose to represent the parity-odd mode.”

CV：Dr. Jiamin Hou is currently a Marie Curie Fellow at the Max Planck Institute for Extraterrestrial Physics, hosted by University of Florida. Previously, she got her PhD from Ludwig Maximillian University of Munich. She is broadly interested the origin and the evolution of the Universe, in particular, using large-scale structure and galaxy surveys to understand fundamental physics.