...extends Stim to natively model:
✅ Leakage errors and their transport via 2-qubit gates
✅ Time-correlated error cascades
✅ Adaptive DEMs for heralded noise
Read more from @marklt.bsky.social and try it for free here: www.riverlane.com/news/introdu...
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Posts by Riverlane
Simulating non-computational errors just got faster⚡️
Noncomputational errors pose a significant challenge for quantum error correction, are hard to simulate and account for during decoding. We’ve released Deltakit-Stim to fix this.
Deltakit-Stim...
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😔 Missed the #APSMarch Meeting last month? We've got you covered!
Our team gave their insights into the event, including:
🟢 The industry's first end-to-end real-time #QEC demo
🟢 Why latency is now the defining bottleneck
🟢 Our partner integrations and plans
🔗 www.riverlane.com/news/aps-mar...
On #WorldQuantumDay, Joan explained why the decoder is the beating heart of #QuantumErrorCorrection 💓
The blog post explores why real-time decoding matters, Riverlane’s approach to adaptive decoding, and NVIDIA’s latest "Ising" model (announced yesterday)
🧪🔗 www.riverlane.com/blog/why-the... #QEC
What's changed at Riverlane in the last year? We're grown faster, gone further and shipped bigger. Here are some highlights...
We grew our team! We welcomed 71 new staff across our UK, US and Delft offices.
Hello Delft! Led by Professor Barbara Terhal, our Delft office opened in December 2025 and is focused on applying AI/ML to advance quantum error correction.
There were lots more exciting milestones. April 2025: Joined the DARPA QBI and UK Quantum Missions. June 2025: Our transversal logic paper advances research on AMOs. September 2025: Deploy Deltaflow at Oak Ridge National Lab + launch our Deltakit SDK. December 2025: We unveil the world’s first hardware decoder. March 2026: Launch the Riverlane QEC Technology Roadmap. April 2026: Deltaflow achieves 10x faster latency than Google
🎉 Happy #WorldQuantumDay! Today, we celebrate the science driving the next computing revolution and reflect on our highlights from an incredible year at Riverlane👇
If you want to help make utility-scale #quantumcomputing possible, we’re hiring: www.riverlane.com/jobs
New results! We ran the #Google Willow dataset (1M rounds of continuous QEC) through our #QEC stack & hit:
⚡Mean latency 16.32 µs (🎯 20 µs)
⚡Up to 10× faster processing v Google's published numbers
⚡Consistent, stable performance across every round
🧪 More info: www.riverlane.com/news/riverla...
#QuantumErrorCorrection is hard, but a softer approach can help!
Instead of relying on 0/1 outcomes, soft decoders use rich analogue readout data to better judge when a qubit measurement is uncertain, leading to stronger error suppression with fewer qubits
🔗 iopscience.iop.org/article/10.1...
We should also thank the team for this exceptional #quantum cake! More details in the blog post below 👇🍰😋
🙌 Want some hands-on #QEC experience?
Last month, the ‘Riverlane #QuantumErrorCorrection Distance-3 Surface Experiment Workshop’ was hosted by the QSC at Oak Ridge National Lab with our partners IQM
Find out more: www.riverlane.com/blog/running... — & get in touch if you want to host a workshop!
So, find us at booth #817 and:
🟢 Learn more about Riverlane: who we are + what we do
🤔 Learn about quantum error correction: what it is + why it’s crucial
🛣️ Explore our technology roadmap toward utility-scale quantum computing
⚔️ Take part in our Quantum Quest and win prizes!
#APSMarch2026
As part of the Riverlane Quantum Quest, you get to explore #APSMarch2026 + could win:
🎧 Riverlane-branded earbuds for 4 completed tasks
😎 With 6+ completed tasks, enter into a daily prize draw for a chance to win a VR headset!
Interested? here's some more info: www.riverlane.com/riverlane-at...
Join us at #APSMarch2026, booth #817!
Meet the Riverlane team and see our first-ever demonstration of Deltaflow and Deltakit, our integrated platform for real-time #QuantumErrorCorrection
More info here: www.riverlane.com/riverlane-at...
⚔️ We've even started a Quantum Quest...
👟Fancy utility-scale #quantumcomputing 3-5 years earlier than expected?*
The new Riverlane #QEC Technology Roadmap outlines all the steps to make it happen, with a complementary whitepaper going into the details: www.riverlane.com/qec-technolo...
* Real-time QEC dependent 😉
Thoughts?
Follow-up expts from other groups (see Fig 4h of a recent Nature article) show results consistent with exploiting mobility-like effects in practice
Congrats to authors J Camps, O Crawford, G Gehér, A Gramolin, M Stafford, @marklt.bsky.social + thanks to Fujitsu!
www.nature.com/articles/s41... 🧵4/4
This is, to our knowledge, the 1st paper to identify and characterise leakage mobility as an LRU. We compared mobility vs. other LRUs using fully quantum qutrit simulations on Fujitsu’s 39‑qubit simulator (Also: 🥈 in the Fujitsu Quantum Simulator Challenge!)
🧵3/4 www.fujitsu.com/global/about...
🪣Leakage moves qubits out of the computational space (|0⟩, |1⟩ → |2⟩). Long-lived leakage can destroy performance even with leakage-aware decoders. LRUs are needed to regularly remove leakage; mobility can serve that role.
Read our non-tech summary: www.riverlane.com/press-releas...
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👏We're excited to share our new paper showing that leakage mobility in superconducting qubits can itself act as a leakage-reduction unit (LRU) - i.e., moving leaked population so it can be flushed away: iopscience.iop.org/article/10.1...
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Here’s why it matters…
🥳Excited to share our new paper: "Minimum Weight Decoding in the Colour Code is NP‑hard"
We prove there's no algorithm to find the best way to correct errors in reasonable time for the colour code
So, let’s focus on heuristic/approx algorithms: scirate.com/arxiv/2603.0... @marklt.bsky.social
This new feature tackles the challenge of "noisy" quantum data, providing robust, confident insights into your system's performance
🔗 Our senior open-source software engineer, Adrien Suau, explains more about error budgeting here: www.riverlane.com/news/how-err...
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💰Prioritise hardware improvements: identify the main error sources + understand how best to improve your hardware to reduce your error rates
💡Accelerate #QEC research: error budgeting offers a clear path to design more resilient codes + tailoring them to your specific hardware characteristics🧵3/4
Error budgeting transforms QEC optimisation from guesswork into a data-driven strategy, allowing you to:
🔬Identify primary error sources: you can pinpoint which physical error mechanisms (like gate errors, idle noise, or measurement errors) are holding back your #quantumcomputer 🧵2/4
🚀 Stop guessing, start optimising!
Improving #QEC performance can be like searching for a needle in a haystack, blindfolded! But what if you could ID your chip's performance bottlenecks?
Our OS Deltakit SDK does that with its NEW feature: Error budgeting in QEC! deltakit.riverlane.xn--com1-nf24c/4
🎉 It's publication day! 🎉
Congrats to the team for a new @prxquantum.bsky.social paper where their 'ghost protocol' speeds up QEC cycle speeds 10x for AMO qubits 👻
journals.aps.org/prxquantum/a...
👏 Mark Turner, @quantumearl.bsky.social, Ophelia Crawford, Neil Gillespie, and Joan Camps
👉 Emily offers top tips in the full blog post, available here: www.riverlane.com/blog/why-you...
#QuantumComputing #CareerAdvice #TechJobs #Riverlane #FutureofTech #CareerDevelopment #Innovation
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🦾 Insight #3: Your skills are needed 🦾
Whether you're a software engineer, hardware specialist, mathematician, or computer scientist, your expertise can be adapted and applied
We're committed to training and development to help you grow
💥 But how can you make your application stand out?
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📈 Insight #2: A robust and growing Industry📈
#QuantumComputing is an emerging tech in a strong financial position, attracting significant investment from VCs and governments today. Boston Consulting Group (BCG) also projects it could be an $850 billion industry by 2040! 💰
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⚛️ Insight #1: No quantum background? No problem! ⚛️
Only 5% of Riverlane staff joined with a quantum-specific qualification. Transferable skills from #engineering, #software, #maths, #physics, and #humanities are all highly valued.
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Thinking about a career in #quantumcomputing but don't have a #quantum #physics degree? 🤔 You might be surprised!
Our head of talent, Emily, shares crucial insights in her latest post, debunking common myths and offering practical advice for anyone looking to enter this exciting field...
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We're hiring: be a member of Riverlane's QEC team
This isn't just a gap; it's an incredible opportunity to shape the future of computing + work on some pretty amazing problems
If you want to apply your scientific brilliance where it's needed + future-proof your career, the #QEC frontier is calling
Curious? Find out more at www.riverlane.com
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Turns out, the biggest bottleneck in #quantum isn't the hardware, it's you – the talent! 🤯
Recent US House hearings echoed our QEC Report 2025: only a few hundred folks worldwide currently have the skills to genuinely advance #QuantumErrorCorrection
👉 thequantuminsider.com/2026/01/23/e...
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