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11.7.2025
Veena Vijayakumar

2025 Q2 Updates: New Supporting Members, UnitaryHACK Wrap-up, and Hitting Community Milestones!

Dear Unitary Foundation community,

We’re happy to share our 2025 Q2 quarterly update!

In this first half of 2025, we were honored and excited to bring on two new supporting members, Riverlane and Quantum Machines. With the support of these two companies and all of our ongoing members, UF can continue to commit deeply to our research and community development. You can read more about our new members here.

Last month, we closed out our largest unitaryHACK in UF’s history. In this fifth edition of the HACK, we welcomed 900+ hackers and 100+ maintainers from 76 countries around the world. Hackers closed 172 bounties and collected a total of $19710 USD. Read more about the leaderboard, our in-person HACKdays, and more here.

We also hit a major milestone in the growth of our community. The Unitary Foundation Discord server now has 5,000+ members! If you’re not already, join us on Discord as well as our other social channels (e.g. LinkedIn and Bluesky account) to keep up-to-date on all things UF + open source quantum computing.

Finally, a few things in Q3 that should be on your radar (you can read more about these below):

  1. unitaryCON 2025 will take place on September 3-4 alongside IEEE Quantum Week in Albuquerque. Reach out to us at info@unitary.foundation if you’d like to join us this year!
  2. The Quantum Open Source Survey will open at the end of Q3. Keep an eye out - we’d love to hear your thoughts!

See you soon! The UF Team

New from Unitary Foundation

Research Papers

UCC

  • First paper published using UCC to achieve SOTA results in multi-chip architectures: Hardware-aware Compilation for Chip-to-Chip Coupler-Connected Modular Quantum Systems, Z. Du, et al [2505.09036].
  • New versions released:
    • V0.4.7 [June 2025]: In v0.4.7, on the heels of UnitaryHACK 2025, we have integrated our first compiler passes developed by external contributors. This includes a BQSKiT port and a new approximate compilation module. We have also made a slew of documentation and infrastructure improvements based on feedback from UHack contributors, including streamlining the new compiler pass proposal to PR acceptance workflow
    • V0.4.6 [May 2025]: Version 0.4.6 introduces major workflow improvements, including migrating UCC benchmarking to the standalone ucc-bench repository, enabling automated performance checks on PRs with results posted directly as comments. This release prepares for dynamic circuit support by allowing user-defined target gatesets post-compilation and begins prototyping a fault tolerance checker (tracked in ucc-ft). Additionally, the project now uses uv for faster package management and enables Dependabot for dependency updates, streamlining development processes
    • V0.4.5 [April 2025]: In version 0.4.5, we enabled plotting of relative errors on the simulated benchmarks and continued refinement of the expectation value benchmarking flow, including the addition of a custom observable for QCNN circuits and adjustments in the applied gate error rates to reflect capabilities of current devices. We also automated the pypi publishing workflow upon release, added support for Qiskit 2.0 along with other dependency upgrades, and updated our infrastructure to reflect the GitHub rebranding of UCC’s home organization, Unitary Foundation

Mitiq

  • We reached 250k downloads! Check out this post (and graphic) to learn more
  • New citations
    • Anomalous slow-down of the bound state dynamics in a non-locally coupled quantum circuit, B. Paul, S. Mondal, T. Mishra [2506.09818].
    • Deep-learned error mitigation via partially knitted circuits for the variational quantum eigensolver, S. Cantori, A. Mari, D. Vitali, S. Pilati [2506.04146].
    • Quantum-Accelerated Supercomputing Atomistic Simulations for Corrosion Inhibition, K. Elgammal, M. Maußner [Link].
    • Quantum Resilience: Canadian Innovations in Quantum Error Correction and Quantum Error Mitigation, G. Saxena,et al [2505.20534].
    • Quantum error mitigation, N. Milazzo [Blogpost].
    • Quantum Artificial Intelligence for Software Engineering: the Road Ahead, X. Wang, S. Ali, P. Arcaini [2505.04797].
    • Analysis of Innovative Quantum Optimization Solutions for Shor’s Period Finding Algorithm Applied to the Computation of, K. Dias, E. Ezin [Link].
  • 0.45.0 release
    • Upgraded many tutorials to use latest versions of qiskit
    • Mitiq <> UCC tutorial
    • Virtual Distillation user guide now live

Metriq

  • We have released the Metriq-Gym beta on PyPI. This is an open source command-line tool to define, collect, review, and publish quantum hardware benchmarks directly to the Metriq web app. More news on Metriq-Gym will be released in the coming weeks. For now, check out our Github page for more info!
  • We presented at the third international workshop on quantum benchmarking, organized by Teratec in Palaiseau, France. All slides from the talks can be found here

QLASS

Conferences + Events We Attended in Q2

  • April 9, 2025 at Quantum Group @ UW Allen School, “On Error Mitigation and its sample complexity” by Nate Stemen
  • May 13, 2025 at International Conference on Quantum Computing, about the paper “Quantum amplitude estimation from classical signal processing” [2405.14697] by Farrokh Labib
  • May 29, 2025 at PyCon Italia, “Quantum computing without leaving Python behind” by Alessandro Cosentino
  • June 4, 2025 at Edge Esmeralda 2025, “An Intro to Unitary Foundation and the unitaryDESIGN program” by Ben Castanon
  • June 18, 2025 at The Coding School’s Early Quantum Career Immersion Program, “Building Out the Next Steps in Your Quantum Computing Journey” by Veena Vijayakumar
  • June 25, 2025 at the TQCI Quantum Benchmark conference, “Independent, systematic, reproducible and open-source quantum benchmarking with metriq-gym” by Nathan Shammah

Q2 Grants

  • To Andi Gu and Pablo Bonilla for Fast Neural Decoders for Universal Logical Quantum Algorithms
  • To John van de Wetering for Future-proofing PyZX
  • To Yudong Cao, Shangjie Guo, Manuela Rivas Gómez, and Aleyna Küçükçolak for quantum_factoring_resource_estimation
  • To Shuwen Kan and Zefan Du for Pauli Atlas: Pauli-Based Computation Compiler for Quantum Error Correction
  • To Balint Pato for PlanqTN
  • To Rakhim Davletkaliyev for Quantum Computing for Software Engineers

Other News from the Community

  • Micrograntee Katherine Van Kirk presented her project, Derandomized Shallow Shadows, at the 2025 Quantum computing theory in practice (QCTiP) conference in Berlin, Germany
  • Micrograntee Amber Van Hauwermeiren and her team at OrangeQS have even more updates from their company for this quarter:
    • OrangeQS raised a €12M seed round, the largest quantum seed round in The Netherlands
    • A new development project by OrangeQS and TU Delft focuses on automation and parallelization of protocols for testing quantum chips
    • The team will be hosting an upcoming workshop about open-source OrangeQS Juice and Quantify at SQA Delft 2025 on Wednesday August 27th
  • Several UF micrograntees brought their projects to unitaryHACK 2025, closed out issues, and built new relationships with contributing hackers. Participating projects included: graphix, PauLie, Piccolo.jl, H-hat quantum programming language, Quantify, PyZX, Quantum Open Source Foundation, and Quantum Universal Education. Check them out on the unitaryHACK website!

Coming up

  • The 2025 QOSS Survey will open at the end of this quarter - follow us on socials and our newsletter to be the first to know when it drops! Here are last year’s results
  • Save the date: unitaryCON will be co-located with IEEE Quantum Week in Albuquerque this year. If you’ll already be in Albuquerque for IEEE, we hope you’ll join us for unitaryCON 2025 on September 3-4 at the Albuquerque Convention Center. Reach out to info@unitary.foundation for more information
  • Stay up-to-date on all things UF and Quantum Open Source Computing by following us on our communication channels: