Time: 14:00-15:30, Thuesday, November 4 2025
Venue：E4-233
Host：Hongguang Liu, ITS
Speaker：Fei Huang, Weizmann Institute of Science
Biography：Dr. Fei Huang is a postdoc from the Weizmann Institute of Science in Israel. He earned his PhD from the University of Arizona, and then worked as a joint postdoc at the University of California, Irvine, and the Institute of Theoretical Physics, Chinese Academy of Sciences. His research interests lie at the interface between high energy physics and cosmology. His recent work focuses on dark matter theories and the expansion histories of the universe.
Title：Cosmological Stasis and Its Observational Signatures
Abstract：Cosmological stasis is a phenomenon in which multiple energy components with different equation-of-state parameters maintain constant abundances for an extended period despite the expansion of the universe. In this talk, I review the how stasis arises and discuss the possible implications of this phenomenon in observations. These include characteristic imprints in the stochastic gravitational-wave background and the enhancement in the growth of matter density perturbations on small scales.
