Nick Blunt
@nickblunt.bsky.social
Staff quantum scientist at Riverlane. Quantum computing, QMC and electronic structure theory.
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...
scirate.com/arxiv/2510.1...
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...
scirate.com
October 14, 2025 at 8:39 AM
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...
scirate.com/arxiv/2510.1...
Reposted by Nick Blunt
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
August 8, 2025 at 2:04 AM
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
Reposted by Nick Blunt
🎉 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
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
September 17, 2025 at 12:18 PM
🎉 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
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
Reposted by Nick Blunt
👏 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
journals.aps.org/prxquantum/a...
🧵1/2 #QEC
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...
journals.aps.org
September 15, 2025 at 7:53 AM
👏 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
journals.aps.org/prxquantum/a...
🧵1/2 #QEC
Reposted by Nick Blunt
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 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
scirate.com
July 28, 2025 at 10:22 AM
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 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
Reposted by Nick Blunt
👻 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👇🧪
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👇🧪
Mark L. Turner, Earl T. Campbell, Ophelia Crawford, Neil I. Gillespie, Joan Camps
Scalable decoding protocols for fast transversal logic in the surface code
https://arxiv.org/abs/2505.23567
Scalable decoding protocols for fast transversal logic in the surface code
https://arxiv.org/abs/2505.23567
May 30, 2025 at 8:40 AM
👻 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👇🧪
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👇🧪
Reposted by Nick Blunt
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/...
apply.workable.com/riverlane/j/...
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...
apply.workable.com
May 24, 2025 at 12:06 AM
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/...
apply.workable.com/riverlane/j/...
Reposted by Nick Blunt
👋 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
🧵[1/2]
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
🧵[1/2]
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.
www.riverlane.com
May 9, 2025 at 10:41 AM
👋 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
🧵[1/2]
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
🧵[1/2]