Hongfei Yu

Cosmology!

I am an undergraduate studying astronomy at the University of Science and Technology of China (USTC, Class of 2023) and a member of the Wang Shouguan Talent Program in Astronomy. I am currently an undergraduate intern at the University of Wisconsin–Madison, where my internship runs from July 2026 to January 2027.

My research interests lie in phenomenological cosmology, particularly large-scale structure (LSS), dark energy, and fundamental physics. My current work focuses on:

  • Studying the statistics of halo and galaxy distributions to probe the halo model, under the supervision of Prof. Huiyuan Wang.
  • Exploring neural network methods for constraining non-Gaussianity with cosmic shear, in collaboration with Prof. Moritz Muenchmeyer.

I am also interested in effective field theory (EFT) approaches to large-scale structure and dark energy, which I see as promising tools for understanding the universe.

Highlights

  • Research experience: cosmology research at NAOC (2024–2025), an undergraduate research program at USTC (2025–2026), and a research internship at UW–Madison (2026–2027).
  • Collaboration membership: member of the DESI Cosmological Parameter Estimator (CPE) group.
  • Academic training: graduate-level coursework in general relativity and cosmology, large-scale structure, and AI for astrophysics, alongside a broad foundation in physics and mathematics.
  • Teaching assistantships: Theoretical Mechanics (Fall 2025) and Electrodynamics (Spring 2026).

Publications

  • (In preparation) 3D Cosmic Web Cross-Correlation in Tidal Eigenspace I: Anisotropy of Cosmic Web-Halo Correlation and Assembly Bias

    Hongfei Yu, Huiyuan Wang

Learn more about my projects on the Research page.

Beyond Academics

Outside research, I enjoy badminton, volleyball, and playing percussion in an orchestra. Visit Miscellaneous to learn more about my life beyond physics.

Thanks for visiting! You can find more about my background in my CV.