Korbinian Kottmann

I didnt know this existed, thank you so much! Looks very solid, in particular, the tequila drawer looks amazing! Any connection to github.com/tequilahub/t... ot coincidence?

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.

complete darkness at 5pm is just not something I will ever get used to 🥲

To be fair the first week after switching back from daylight saving time feels like having one extra hour per day, but that never lasts long.

I totally get that some people prefer it. I just feel like true early birds by choice of profession still have to get up in the dark anyway 🤷

Wait, daylight saving time is summer time, right? That one, I love! But I guess that is not what you mean :D That "exact <boom> it's winter" moment is what hits me hard every year.

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.

OMGOMGOMGOMGOMG I DIDNT KNOW THIS WAS COMING SO SOON AAAAAAH *runs to closest bookstore*cancels all plans*

The 2025 QOSS Survey is Open! - Unitary Foundation Unitary Foundation

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

Quantum Machine Learning Researcher (Remote) - Xanadu - Career Page Apply to Quantum Machine Learning Researcher (Remote) at Xanadu in Toronto, ON, Canada.

New opening in the QML team @ Xanadu!

xanadu.applytojob.com/apply/v1gc8F...

YouTube video by WISER 2025 QUANTUM PROGRAM ❯ Day 11 ❯ Quantum Simulation and Lie Theory (Dr. Korbinian Kottmann)

or you can listen to my ramblings here www.youtube.com/watch?v=rMyC...

Introducing (dynamical) Lie algebras for quantum practitioners | PennyLane Demos A gentle introduction to Lie theory covering the basics of Lie algebras and Lie groups in the context of quantum computing.

Being square 🟥 is allright: it will be essentially a condensed version of the following 4 tutorials

[1] pennylane.ai/qml/demos/tu...
[2] pennylane.ai/qml/demos/tu...
[3] pennylane.ai/qml/demos/tu...
[4] pennylane.ai/qml/demos/tu...

I'm giving an (online) talk next Monday. Be there or be square 🟥

www.thewiser.org/agenda

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

oh no! feel like this is gonna come haunting a lot of people soon 😅

Trans-anything flights are no longer covered by the FAA

Quantum Compilation — PennyLane Reduce the size of your circuits to run them on next-generation quantum computing hardware. Find explanations and implementations of key compilation techniques.

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.

firefox has this, also possibility to select multiple tabs via shift or cmd and then close with cmd+W :)

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!

With people saying their results got debunked even though neither paper actually does or, for that matter, even claims that they debunk their results, I can partly understand not wanting to discuss the paper with said people in the first place.

Beautiful! Did not know that and definitely would have needed that before! F(ρ,σ) = tr(√(ρσ)) is so much nicer! Is there a good reason to still refer to fidelity/matrix inner products using tr[√(√(ρ)σ√(ρ))]?

contrary to its headline, the article makes a pretty good case for dwave imo