Bio


Chao Yin is a Q-FARM Bloch Fellow at Stanford University. He earned his B.Sc. in Physics from Peking University (2016–2020), and completed his Ph.D. in Physics at University of Colorado Boulder (2020–2025) under the supervision of Prof. Andrew Lucas. His research interests include quantum information, condensed matter theory, and mathematical physics.

Professional Education


  • Doctor of Philosophy, University of Colorado Boulder, Physics (2025)
  • Bachelor of Science, Peking University, Physics (2020)

Stanford Advisors


All Publications


  • Robust Symmetry Breaking in Gapless Quantum Magnets. Physical review letters Yin, C., Lucas, A. 2026; 137 (7): 070405

    Abstract

    We prove the existence of spontaneous symmetry breaking in suitably low-energy eigenstates of certain gapless and frustrated many-body quantum systems, namely symmetric quantum perturbations to classical models that exhibit spontaneous symmetry breaking of a finite group at some positive temperature. Additionally, the classical model need not be local in space, as long as it satisfies a quantum analog of the Peierls condition. As an example of our technique, we establish robust ferromagnetism in random-bond Ising models in d=2 dimensions with sufficiently biased random couplings, with weak transverse field. Our mathematical technique is based on establishing quantum bottlenecks, similar to a "many-body Wentzel-Kramers-Brillouin" method for evaluating tunneling rates. Using these same methods, we provide new proofs of metastability and the slow decay of the false vacuum, applicable to gapless metastable states. Our Letter represents a first step toward a rigorous classification of stable gapless quantum phases.

    View details for DOI 10.1103/5ntb-ggcz

    View details for PubMedID 42675414

  • Quantum Routing and Entanglement Dynamics Through Bottlenecks PRX QUANTUM Devulapalli, D., Yin, C., Guo, A. Y., Schoute, E., Childs, A. M., V. Gorshkov, A., Lucas, A. 2026; 7 (1)

    View details for DOI 10.1103/7b1x-hjcy

    View details for Web of Science ID 001691028100002

  • Lieb-Robinson Bounds with Exponential-in-Volume Tails PRX QUANTUM McDonough, B. T., Yin, C., Lucas, A., Zhang, C. 2025; 6 (4)

    View details for DOI 10.1103/n242-m1l2

    View details for Web of Science ID 001617877500001

  • A Polynomial-Time Classical Algorithm for Noisy Quantum Circuits PHYSICAL REVIEW X Schuster, T., Yin, C., Gao, X., Yao, N. Y. 2025; 15 (4)

    View details for DOI 10.1103/xct1-7kf2

    View details for Web of Science ID 001633096200002

  • Low-Density Parity-Check Codes as Stable Phases of Quantum Matter PRX QUANTUM Yin, C., Lucas, A. 2025; 6 (3)

    View details for DOI 10.1103/361k-nj4b

    View details for Web of Science ID 001553821400002