Nick Blunt

Minimum Weight Decoding in the Colour Code is NP-hard All utility-scale quantum computers will require some form of Quantum Error Correction in which logical qubits are encoded in a larger number of physical qubits. One promising encoding is known as the...

Super nice result from my colleagues
@marklt.bsky.social @riverlane.com showing the NP-hard-ness of min-weight colour code decoding! scirate.com/arxiv/2603.0... 🧠

🎉 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

Although commutators bounds are known, these are challenging to evaluate accurately. We show that this can be achieved with Monte Carlo methods in a scalable manner, for a range of physically-relevant Hamiltonians.

Work done at @riverlane.com and @nqcp-nbi.bsky.social.

A Monte Carlo approach to bound Trotter error Trotter product formulas are a natural and powerful approach to perform quantum simulation. However, the error analysis of product formulas is challenging, and their cost is often overestimated. It is...

In a new paper today with @aleksei-quantum.bsky.social and @abaysmidt.bsky.social, we demonstrate a practical numerical approach to provide tight bounds on Trotter error.

scirate.com/arxiv/2510.1...

Our research group is seeking a talented and motivated Postdoctoral Researcher to join us in advancing the practical realisation of quantum technologies (including quantum error correction and mitigation). The deadline is 06 October 2025: tinyurl.com/bdhf3hzt

🎉 Riverlane just dropped Deltakit! 🎉

This comprehensive platform for mastering #quantumerrorcorrection includes an SDK + textbook with practical examples, letting you dive into a library of codes, decoders, noise models + #QEC experiments.

Get started at deltakit.riverlane.com

Fault-Tolerant Quantum Simulation of Generalized Hubbard Models Tile Trotterization is developed as an efficient method to simulate arbitrary lattice Hubbard and extended Hubbard models in early fault tolerance, and numerical methods are applied to more accurately...

👏 Well done to @nickblunt.bsky.social, @abaysmidt.bsky.social et al for a new @prxquantum.bsky.social paper on 'Tile Trotterization', bringing us closer to simulating superconductors and other states of matter:

journals.aps.org/prxquantum/a...

🧵1/2 #QEC

New paper! ✨ scirate.com/arxiv/2507.1... ✨

We present a new family of qLDPC codes that beat the rotated planar code while only requiring square-grid (or even hex-grid!) connectivity. 1/3

👻 We ain’t afraid of no ghost!

A new #arXiv paper from our team proposes the 'ghost protocol’ to enable AMO qubits to catch up with superconducting qubits, which lag in #QEC cycle speeds.

It addresses the challenges of scalable #QuantumErrorCorrection in the context of fast transversal logic👇🧪

Quantum Algorithms Researcher - Riverlane Cambridge, UK | Full-time or Part-time | Permanent | HybridSalary: £55,000 to £80,000 DOEThe salary range for this role is broad as we are able to consider varying levels of experience.  Any offe...

We have an open rolling advert for QEC researchers at Riverlane. And now also have a single post to fill for an (error-corrected) algorithms researcher

apply.workable.com/riverlane/j/...

Building the error correction stack for quantum computing Riverlane's mission is to make quantum computing useful far sooner than previously imaginable, starting an era of human progress as significant as the industrial and digital revolutions.

👋 Hello BlueSky! 🧪

Riverlane is a team of #QuantumErrorCorrection (QEC) experts, helping quantum computers scale and tackle errors across all qubit types.

Find out more about our work here: www.riverlane.com

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