Hi! I am Yiyi Cai, a PhD student at Stanford Computer Science, supported by a Stanford Graduate Fellowship and a NSF Graduate Research Fellowship. I am broadly interested in the interplay of theoretical computer science and quantum information, including quantum algorithms, coding theory, complexity theory, and cryptography. I hope to apply tools in TCS to discover relevant physical phenomena. Previously, I completed a B.S. in Electrical Engineering at Caltech, and a MPhil in Advanced Computer Science at the University of Cambridge as a Gates-Cambridge Scholar.

Selected Work

High-Temperature Fermionic Gibbs States are Mixtures of Gaussian States
Akshar Ramkumar, Yiyi Cai, Yu Tong, Jiaqing Jiang
Physical Review Letters, QIP 2026

Stochastic Error Cancellation in Analog Quantum Simulation
Yiyi Cai, Yu Tong, John Preskill
TQC 2024, Outstanding Paper Prize [talk]