Benjamin MacLellan

Ph.D. Researcher, Perimeter Institute Quantum Intelligence Lab.

Technical Lead, Ki3 Photonics Technologies.

headshot.jpg

I am a scientist working at the intersections of quantum information science, photonics, and machine learning. My goal is to develop light-based quantum technologies that have an impact and to communicate science in clear and engaging ways.

My research interests revolve around numerical methods for designing and scaling quantum technologies, including computers, networks, and sensors; as well as how machine learning can be used for scientific discovery in physics.

I am a Technical Lead at Ki3 Photonics Technologies, where I integrate quantum networking capabilities on top of classical telecommunications infrastructure. I am also a founding contributor to Open Quantum Design, a non-profit organization aimed towards developing the world’s first full-stack, open-source quantum computer.

news

Nov 01, 2024 Open Quantum Design has now open-sourced our first set of software repos as part of our mission to build the world’s first open-source quantum computer. Check out equilux on Github, which includes interfaces for programming quantum computers at analog and atomic layers, compiler infrastructure, cloud provider tools, and an emulator for analog programs.
Jun 27, 2024 RydbergGPT, generative pretained transformer designed to learn the measurement outcomes of a neutral atom array quantum computer, is out now. Check out the paper arXiv:2405.21052, the code, and the dataset!
Jun 03, 2024 I’ll be joining the Artificial Scientist Lab at the Max Planck Institute for the Science of Light for a research visit during Summer 2024.
Mar 08, 2024 I’m excited to announce the publication of recent work on an end-to-end design framework for variational quantum sensing. Check out the paper on the arXiv:2403.02394! I presented the work at APS March Meeting 2024 in Minneapolis.
Feb 04, 2024 Check out our recent work in collaboration between Ki3 Photonics, Quantum Bridge, PIQuIl, and Prof. Hoi Kwon Lo’s group at the University of Toronto. We improve on the resources required to generate photonic graph states and provide a new design framework (arXiv:2401.00635), and release an accompanying open-source package GraphiQ!

selected publications

  1. Arbitrary phase access for stable fiber interferometers
    Piotr Roztocki, Benjamin MacLellan, Mehedi Islam, and 11 more authors
    Laser & Photonics Reviews, Jul 2021
  2. Autonomous on-chip interferometry for reconfigurable optical waveform generation
    Bennet Fischer, Mario Chemnitz, Benjamin MacLellan, and 8 more authors
    Optica, Sep 2021
  3. Optimization of deterministic photonic graph state generation via local operations
    Sobhan Ghanbari, Jie Lin, Benjamin MacLellan, and 3 more authors
    Jan 2024
  4. Inverse design of photonic systems
    Benjamin MacLellan, Piotr Roztocki, Julie Belleville, and 5 more authors
    Laser & Photonics Reviews, Feb 2024
  5. End-to-end variational quantum sensing
    Benjamin MacLellan, Piotr Roztocki, Stefanie Czischek, and 1 more author
    Feb 2024