Jeffrey Ming Han Li

Welcome

Jeffrey Ming Han Li

Quantum OpticsPhotonicsQuantum Information

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About Me

I am an undergraduate student at the University of Toronto, pursuing a Bachelor of Applied Science in Engineering Physics.

I am a Quantum Hardware RA in the Lukin Group at Harvard University, developing control systems for neutral-atom quantum computing. Previously, I worked in the Qian Lab and Braverman Lab at the University of Toronto. My research interests lie at the intersection of quantum optics, photonics, and quantum computation hardware.

BASc Engineering Physics - University of Toronto Toronto, ON
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Publications

01

Kingston, ON
2024

Denoising CGI Renderings using Deep Learning

H. Chen, J. Li. CUCAI 2024, Kingston, ON, 2024.

Conference Paper

02

Toronto, ON
2024

Low-Noise, Vibration Minimized Optical Shutter Using DC Brushed Motor

J. Li, B. Braverman. UNERD 2024, Toronto, ON, 2024.

Conference Poster

03

Toronto, ON
2025

Photon Pair Generation at 780 and 1560 nm in Periodically Poled Silica Fiber

J. Li, A. C.B. Greenwood, Li Qian, et al. CQIQC Research Day, Toronto, ON, 2025.

Conference Poster

Research Experience

May 2026 - Present | Lukin Group, Harvard University

Quantum Hardware RA

  • Developing control system for qLDPC error correction on a neutral-atom array.
  • Developed an AWG-based RF control system for optical-tweezer manipulation and gate operations, achieving 200 μs command-to-output latency.

May 2025 - May 2026 | Qian Lab, University of Toronto

Quantum Photonics RA

  • Generated hyperentangled photon pairs via type-0 SPDC in periodically poled silica fiber.
  • Designed an optical coincidence counting pipeline using Excelitas SPCM and IDQube single-photon counting modules.
  • Programmed a quantum state tomography pipeline in Python, including maximum-likelihood density-matrix reconstruction and entanglement-metric evaluation.
  • Designed a TTL gating circuit to generate RF gating pulses for photon detector.

May 2024 - May 2026 | Braverman Lab, University of Toronto

Quantum Optics RA

  • Simulated Hermite–Gaussian propagation and optimized spatial-filter parameters using SciPy dual annealing, achieving >95% HG0 mode fidelity in simulation.
  • Constructed a Mach–Zehnder interferometer to perform holography of the filtered spatial mode
  • Designed a low-vibration mechanical optical shutter with 8 ms switching period and closed loop feedback calibration.

Sep 2024 - May 2025 | UTMIST, University of Toronto

QuDiffuse ML Project Lead

  • Led QuDiffuse, investigating quantum annealing and restricted Boltzmann machines for diffusion-model training.
  • Awarded “Most Innovative Project” at UTMIST 2025 Showcase.

May 2024 - Present | IYPT Canadian Physics Camp

Research Supervisor

  • Mentored Canada’s national physics team for IYPT 2024 and 2025; the team earned bronze medals in both years.

Teaching

I actively mentor student researchers and contribute to technical training programs through camp supervision and structured lectures. I document my school notes in the Notes section, and I document interesting findings in the Blog Section.