Highest grades in PhD defense for Dr. Guanmin Li

Congratulations to Guanmin, our newest IMPRS alumnus!

September 29, 2025
PhD Defense

Title: “Oscillatory Computational Networks based on Coupled VO2 Oscillators via Tunable Thermal Triggering”

Guanmin’s thesis explores a new, energy-efficient way to build computers inspired by the human brain. Instead of traditional silicon chips, we use unconventional electronic components called "oscillators" that can be synchronized, or made to pulse together.

We developed a simple and efficient method to control these components using heat, allowing us to build basic computing blocks (logic gates) and even model brain cells (neurons). By connecting these artificial neurons into a larger network, we successfully demonstrated a system that can recognize handwritten digits with over 90% accuracy.

Overall, Guanmin’s work shows a promising new path towards creating low-energy, brain-inspired computer hardware.

 

Classroom scene with a presenter beside a chalkboard displaying logic operations and a projection of VO2 device characteristics, including IV measurement graphs.
Academic lecture room featuring a presentation slide of team member acknowledgments on a projector screen, alongside a chalkboard with mathematical equations.
Two men, one formally dressed holding a book, are in front of a chalkboard displaying logical operations and mathematical formulas, including AND operations and equations for Q and R.
Two individuals in formal attire shake hands in front of a chalkboard covered with logical operations, including an AND gate truth table. One wears a decorated graduation cap and a sash.

 

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