Aleksei Ivanov

Check out new work, led by @nickblunt.bsky.social, on efficient estimation of Trotter Error

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...

🎉 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

Quantum Computation of Electronic Structure with Projector Augmented-Wave Method and Plane Wave Basis Set Quantum simulation of materials is a promising application area of quantum computers. To practically realize this promise, we must reduce quantum resources while maintaining accuracy. In electronic st...

I’m glad to share that out paper on quantum computation with projector augmented-wave method and plane wave basis set in second quantization has been published in JCTC (doi.org/10.1021/acs....)

You can access a free identical version on arxiv here: arxiv.org/abs/2408.03159

👻 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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arxiv is hiring:

specifically:

Scientist/Software Developer
We're looking for someone with serious software development skills who has also used arXiv for scientific research, and preferably someone who has authored arXiv submissions.... Please apply!

info.arxiv.org/hiring/index...

Quantum simulations of chemistry in first quantization with any basis set - npj Quantum Information npj Quantum Information - Quantum simulations of chemistry in first quantization with any basis set

I'm glad to share that our paper "Quantum Simulations of Chemistry in
First Quantization with any Basis Set" was just published in npj Quantum Information:

www.nature.com/articles/s41...

#quantum #compchem

US Quantum Science Lead - Riverlane Boston, US | Full-time | Permanent | Hybrid Salary: $175k - $260k USD + bonus + equity DOE  About us Riverlane’s mission is to make quantum computing useful, sooner. From...

Hiring for a new head of our US science teams!

For those with deep research expertise in QEC and good people and leadership skills.

The most senior job post I’ve ever advertised and not the sort of role that comes up often.

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

Landmannalaugar and Thorsmork, Iceland.

Kamchatka, Kluchevskaya Sopka, Russia

the accuracy problem you described can be attributed to any known classical algorithm because of its heuristic nature. We cannot say in advance what error is before we run calculations. This is why I find some quantum algorithms such as QPE fascinating, we can put the error bar in advance.

An initio method is one which depends on the fundamental constants only such as charge of an electron, etc. The more non-fundamental constants (parameters) one introduces in a model the less it becomes ab initio and more empirical. This is why PBE is more empirical than any CC method.

#compchem and #drugdiscovery people - do you have any good references for where quantum chemistry actually makes a big difference or could make a big difference in the drug discovery process?

To my understanding - often, the sampling error is much bigger than the electronic error when using FFs.

Aleksei V. Ivanov ‪Riverlane Ltd., Cambridge, UK‬ - ‪‪Cited by 399‬‬ - ‪condensed matter physics‬ - ‪quantum chemistry‬ - ‪quantum computing‬ - ‪materials science‬

Would love to join, thanks. Here is the link to my Google scholar profile:

scholar.google.com/citations?hl...