The Fermi liquid fixed point successfully capures the essential low-energy excitations in metallic phases through the quasiparticle framework. However, it fails to describe the properties of strongly correlated materials, such as doped Mot insulators, which exhibit high-Tosuperconductivity and other anomalous bechaviors In this talk, I will discuss the cmergence of a new non-Fermi liquid fixed point in stronglycorrelated electron systems, revealed through renoralization group analysis. This fixed point is characterized by diverging self-energies.spectral weight bifurcation, and the breakdown of quasiparticle descriptions-features intrinsic to Mot plysics.I will also explore how thesefixed points provide a new framework for understanding unconventional superconducting instabilities, dynamic spectral weight transfer, andthe violation of topological invariants in strongly cortelated systems. This work shall ofier new perspectives on the inteplay between strong correlations and emergent quantum phases beyond the Fermi liquid paradigm.

Bio: Jinchao Zhao is a post-doctoral researcher at the Hong Kong University of Science and Technology (HKUSD), where he works with Professors Vic Law, Junwei Liu, and Xucyang Song. He carned his Ph. D. in physics from the University of linois Urbana-Champaign underthe supervision of Philip Phillips. His research focuses on strongly correlated electron systems and high-Te superconductors, with a particularinterest in the interplay between band structure and strong corelations. His work aims to clucidate non-Fermi liquid behavior, correlation driven topological phase transitions, and quantum geometry in both electronic and photonic flat-band systems.