Korbinian Kottmann

One hour more sleep (once) for 5 months of darkness is just such a bad trade 🥲

QHack is back! October 16th Free online coding competition with $67k cash prize skrr skrr Register here: qhack.ai?utm_source=s...

We're hiring a Quantum Scientist - Compilation for our team working on quantum compilation and circuit optimization in the PennyLane (+ Catalyst) ecosystem xanadu.careers.hibob.com/jobs/637bbd6...

Trade xkcd.com/3290/

"I enjoyed publishing some cheeky ZKPs, but I don’t think it’s the right strategy moving forward. The benefits are negligible, and the costs are many. We should just publish openly." 🚀

Everything makes so much more sense once you realize whether you are a lumper or a splitter en.wikipedia.org/wiki/Lumpers...

you know how they say, sometimes 115 quantikz circuit diagrams say more than a thousand words.. new preprint "parameter-optimal unitary synthesis with flag decompositions" w/ @dwierichs.bsky.social Guillermo and Nathan scirate.com/arxiv/2603.2...

typos ftw: I'd much rather read your raw scribblings than your polished and soulless AI-generated deliberations

@mozilla.org Firefox lowkey the best browser for these two features alone: - cmd+tab cycles through tabs in recently used order - you can go back and forth between hyperlinks _within_ a pdf using the back and forward buttons

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... 🧪🧵1/5

Another way to view it: Great! Now we have a very good initial state in form of that MPS to run quantum algorithms on 🙃

Anybody with experience using / contributing to www.qeios.com ?

That's the most positive blog I've read from Scott Aaronson scottaaronson.blog?p=9425

PSA: papers from early 2023 are three years old now.

I will not tire of whining about overleaf and quantikz speeds

All I want for christmas is a (better) quantikz equivalent for @typst.app (and arxiv+journal support) Using overleaf.com after typst.app just feels like going around in a horse-drawn carriage in 2025 - gets you from A to B, and is kinda cool and vintage, but just extremely slow and cumbersome.

I heard someone say reverting daylight saving time in October is like "trading one hour of sleep (once) for five months of darkness" and now I cant unhear it.

In case you haven't already: there is one more week to fill the @unitary.foundation quantum OSS survey for anyone using or developing qc software unitary.foundation/posts/2025_q...

It is that time of year again! The @unitary.foundation qOSS survey is here! Please consider filling it out if you are using, developing or maintaining any quantum OSS like @pennylaneai.bsky.social or similar unitary.foundation/posts/2025_q...

The first novel thing I did in quantum computing was find a way add +1 to a register using O(1) space and O(n) gates. For 10 years I've wanted to know how to generalize that from x+=1 to x+=C... and I finally figured out a way to do it! arxiv.org/abs/2507.23079

New opening in the QML team @ Xanadu! xanadu.applytojob.com/apply/v1gc8F...

Spotted: A photonic GKP state in the wild 🕵️‍♀️ so cool to see! www.nature.com/articles/s41...

Job ad 🧵 2/2 Quantinuum are looking for software engineer to help design and implement quantum programming languages. You need to have OPINIONS about types. Full-time, permanent, based in Cambridge in England. #jobad #quantum #quantumcomputing #pl #proglang jobs.eu.lever.co/quantinuum/6...

Job ad 🧵 1/2 Quantinuum are looking for QEC person to join our compiler team. Ideally you know lots about QEC and a bit about compilers but the other way could work too. Full-time, permanent, based in Cambridge in England. #jobad #quantum #quantumcomputing #qec jobs.eu.lever.co/quantinuum/d...

Trying to understand fault tolerant architectures without getting into the nitty gritty details of surface code physics: The Game of Surface Codes 🐉 pennylane.ai/qml/demos/tu...

arxiv.org/abs/2505.15917

we're starting an encyclopedia style database for passes and concepts in quantum compilation pennylane.ai/compilation what sort of things would people expect and like to see here?

Consider this a warning. Factoring small numbers is a bad benchmark. Because the key to factoring small numbers isn’t making the quantum computer "work well". That’s the key to factoring *large* numbers. For small numbers it's sufficient to generate a far-too-large circuit, and light the fuse.

I am very happy to announce that I will soon join @iftuamcsic.bsky.social as a Ramon y Cajal Fellow ‼️ I am also offering a PhD position on "Quantum Algorithms for High-Energy Physics" ⚛️ Deadline is April 30 and the details can be found here: www.gonzalez-cuadra.com/open-positions Please share!

For a little bit of light in these trying times, I present to you: quantum memes! These are made by my Physics 438a class for extra credit on their midterm (which they are taking at this moment). As always, I take all credit for good memes and no blame for bad ones.