Lexu "Gavin" Zhao
PhD. Theoretical Physics, 2024 - Present
B.S. Mathematics, 2020-2024
B.S. Physics (Astrophysics), 2020-2024
My research spans condensed matter theory, astrophysics, and AI in fundamental science. In condensed matter, I study topological phases and strongly correlated systems using many-body theory, renormalization-group ideas, and AI-assisted variational methods. In astrophysics, I explore primordial black holes as dark matter candidates, holographic principles in our universe, and black hole quantum information. My earlier work focused on stellar astrophysics, including spectral typing of main-sequence stars and cool dwarfs. A central theme of my research is using AI techniques to uncover new theories from small-scale quantum systems to the large-scale structure of the universe.
More info at: research section
Center for Astrophysics and Space Sciences (CASS) at UCSD
PhD in Physics
University of Florida 2024-present
Research areas: Condensed Matter Theory (Advisor: Dr. Jiabin Yu), AI in fundamental Science, Astrophysics.
Fellowship: Teaching Assistantship stipend with an additional scholarship.
Undergraduate Lab Course Instructor
B.Sc. in Astrophysics (Honor), B.Sc. in Mathematics
University of California, San Diego 2020-2024
Research areas: Stellar Astrophysics, Primordial Blackholes and Dark Matter, Holographic Universe, Quantum Computing, etc. Advisor: Dr. Chris Theissen
UCSD Cool Star Lab: Summer 2023 Research member
Selected Conferences: 243RD MEETING OF THE AMERICAN ASTRONOMICAL SOCIETY NEW ORLEANS 2024; 2023 Summer Research Conference at UC San Diego (SRC)
Award: 2023 Undergraduate Summer Research Award (USRA)
Leadership: 2021-2022 President of Astronomy Club @ UC San Diego
243RD MEETING OF THE AMERICAN ASTRONOMICAL SOCIETY NEW ORLEANS, LOUISIANA 7 – 11 JANUARY 2024
Title: Template Creation for Spectral Typing: A Study of Gaia DR3’s Low-Resolution Spectra
2023 NASA L’SPACE Academy Fellow: Advancing in NASA Proposal Writing and Evaluation Experience
I was a part of NASA’s L’SPACE (Lucy Student Pipeline Accelerator and Competency Enabler) Academy, an intensive program in proposal development and review. Working with a cross-disciplinary team, I led a concept proposal addressing a challenge in the Exploration Destination Systems (TX07) domain—covering mission operations and in-situ resource utilization. The experience built practical skills in NASA-style writing, scoring, and evaluation, and connected our work to the objectives of the Lucy mission to the Trojan asteroids.
Machine Learning Specialization -- Stanford University and DeepLearning.AI (Issued)
Building Supervised/Unsupervised Advanced Learning Models, Applying ML Techniques to Real-World Problems
2023 Undergraduate Summer Research Award, UC San Diego
I am honored to have been selected for the Undergraduate Summer Research Award (7,500$) by the Dean of the School of Physical Sciences at UCSD. The award supports my ongoing research, Spectral Typing all of Gaia Data Release 3: A Study of Low-Resolution Spectra. Poster Github
2023 August 16th, Summer Research Conference (SRC), UC San Diego
I had the opportunity to present my research at one of the region's most prestigious academic events. This conference holds the distinction of being the largest undergraduate research assembly in the region. Attracting participation from 55 diverse academic institutions, including notable universities and private institutions, this conference is truly a focal point for groundbreaking research and intellectual discourse in the scientific community.
Research Focus: Guided by Professor Chris Theissen and Quinn Konopacky, my research was centered around creating spectral templates to facilitate comprehensive studies of stars and stellar populations, utilizing the vast and precise data procured from the Gaia satellite. The core objective was to augment the precision and reliability of these templates, thereby providing a potent tool for expansive astronomical studies and enriching our collective understanding of stellar phenomena.
Research talks can be viewed on YouTube: Astronomy & Astrophysics session
2023 Physics Honors Program, UC San Diego
Selected for the Physics Honors Program in Fall 2023 and recognized for exceptional academic and research performance. Contributed to the academic community by presenting research at UC San Diego’s Undergraduate Research Conference (URC).