#QCTiP 2026: come for the talks, stay for the socks!

Good evening Oxford, ready for QCTiP! Excited to catch up with cool people and cool research 😄

Today we posted a new pre-print on #QuantumKernels: scirate.com/arxiv/2604.15214 This time, instead of searching for kernels that achieve quadvantage and whatnot, we concentrate on how to perform inference: how to best evaluate a learned hypothesis on new data. #QML & #QuantumAlgorithms!

After several years of being young, today I got old: today was the last time I attended an opera with the crazy discounts you get in Berlin for being under 30. I guess I'll need to start making millions now. I had a good closure though: der Rosenkavalier at the Staatsoper!

New #QML paper alert! 📝🧠⚛️ 🧐 A PAC-Bayesian approach to generalization for quantum models arxiv.org/abs/2603.22964 This collaboration involved some seriously hard and fun work by @pablones8.bsky.social, Matthias Caro, Carlos Bravo-Prieto, @fjschreiber.bsky.social, and @jenseisert.bsky.social

🎆 Congratulations to Sergi Masot Llima, from the Quantic group, on the successful defence of his #PHD thesis! 🙌 Well done, Sergi! Wishing all the best in your career ahead. #BSCTalent

Thanks @markwilde.bsky.social for illuminating our learning & algorithms seminar with your views on #QBM s, we had a blast :)

To be honest I always thought this is what would happen. Any part of a system that can be fully off-loaded to an automated algorithm could in-principle be removed entirely from the system. No?

I just misunderstood someone, thinking they said "Parametrized Quantum Circus", and tbh I find it quite relatable #QML 🎪🤡 New goal: become known as a quantum clown.

The bad thing about January being way colder than usual, is that now February being as cold as usual is shattering my willpower.

Woooooow I wasn't aware @terriblemapshq.bsky.social is on bluesky! This alone made my day. Let's roll!

This year's Quantum Computing Theory in Practice Conference (QCTiP) is scheduled for 04/20/2026-04/25/2026 in Oxford, UK 🇬🇧: qctipconf.github.io Talk submission deadline is just round the corner: 01/11/2026. Looking forward to many exciting contributions and a great time in Hogwarts🪄, aehm Oxford🎓.

#NousICREAs2025 |📊 Gergely Neu (@neu-rips.bsky.social @upf.edu#NousICREAs2025 estudia els fonaments de l’aprenentatge automàtic i IA, amb l’objectiu de desenvolupar algoritmes més transparents i robustos, capaços de prendre decisions fiables en el món real. https://short.do/JYHhN1

Very happy about our new pre-print! Here, we share how we think about potential quadvantage in #QML, from the point of view of the function families that arise from usual Parametrized Quantum Circuits. Please do let us know what you think about our perspective :) scirate.com/arxiv/2512.1...

Very excited to share a new paper with Malvika Joshi, Avishay Tal, and John Wright on “Improved Lower Bounds for QAC^0”! In this work, we prove the strongest known lower-bounds to date for QAC^0 with the full power of polynomially many ancillae. arXiv: arxiv.org/abs/2512.14643

Observations from #QTML25: when compared to previous editions, memes-on-slides have been almost entirely replaced by emojis-on-slides 🤔

Our group is looking to hire postdocs to work at the intersection of quantum computing, quantum algorithms, quantum machine learning, simulation of many-body quantum systems and early-fault tolerant quantum computing Apply here: lanl.jobs/search/jobde... Reposts appreciated!

(I/III) We're excited to announce a new tenure track opening! The position is called 'quantum informatics' and is affiliated with our QUICK group within the CS+AI division at @jku.at 🇦🇹. Application deadline is November 30th, 2025: www.jku.at/en/the-jku/w...

An academic fact whose importance cannot—absolutely cannot—be overstated: Whoever creates the Overleaf project gets to pick the macros.tex

PhD position on quantum computing at at ETH Zurich, advised by Dominik Hangleiter and co-advised by Renato Renner www.quantiki.org/position/phd...

The German saying goes "wer schön sein will muss leiden". My German is not so good, so I understood "wer schön sein will muss *nach* Leiden". Off to spend a couple months @unileiden.bsky.social, to start new projects on #QuantumMachineLearning

Just an observation: my experience flying low-cost in Europe has been approximately constant for 10 years. A similar statement is true about trains and buses. The same is *not* true about cars.

You think we already have enough entropies and divergence measures? I don't think so! In our latest work (arxiv.org/abs/2509.20472), we introduce yet another information theoretic measure -- the computational relative entropy. Let's have a quick rundown👇

Please get in touch if you are interested in a PhD on the mathematics of quantum information and its applications to learning and communication.

This happy pup just registered for #QTML25! So much looking forward 🥳

Been awhile since I wrote a blog post. Anyways... why haven't quantum computers factored 21 yet? algassert.com/post/2500

Looking for a postdoc to work on bosonic quantum error correction! Join me and the QAT team at ENS & INRIA Paris — flexible start date. Details here 👉 recrutement.inria.fr/public/class... or feel free to reach out!

When I woke up this morning I didn't think I would see my name next to that of a #physics giant. In case you're curious about the paper I presented: arxiv.org/abs/2406.07072

For all the interest in combating climate change you see around Germany, I wonder how many tonnes of CO2 can be traced back to the poor service offered by @bahn.de @bahn.bsky.social. How many people choose to fly or drive a car just to avoid ICE delays and short-notice cancellations.

True or false? The instant the train crew changed from SBB 🇨🇭 to DB 🇩🇪 a 20' delay materialized out of thin air.

With Dar Gilboa and Jarrod McClean, we prove a new quantum advantage for learning periodic neurons in the quantum statistical query model! arxiv.org/pdf/2503.20879 The hardness of this problem was studied long before this work by classical learning theorists. 🔎

The registration deadline of the main event of the year on quantum computing theory in practice (#QCTiP2025) will be #tomorrow, anywhere on Earth. qctip2025.com

Listen, Broligarchy is not some cute synonym for oligarchy. It's genuinely different & WAY more dangerous. I'm a sociologist who's been studying the ultra-rich globally for 17 yrs, entering their world as an offshore wealth mgr. Published 2 books abt them. 🧵Broligarchs are distinct in 3 ways:

We recently released a software package to optimize IQP circuits that scales to millions of qubits and gates. Our main motivation was quantum machine learning (paper on the way!), but we believe there could be many other applications. arxiv.org/abs/2501.04776 github.com/XanaduAI/iqp...

Quantum learning models can exhibit the double descent phenomenon, challenging traditional statistical learning theory and highlighting their potential for improved performance in overparameterized regimes. arxiv.org/abs/2501.10077

📝 New work out today! Our next installment on the quest for modern learning theory in Quantum Machine Learning #QML: "Double Descent in QML" scirate.com/arxiv/2501.1...

For a typical opera or orchestra concert that gets performed more than once, which is larger: A) the time spent clapping times the size of the audience. B) the time spent rehearsing times the size of the company / orchestra. What if we add "rehearsing and performing" to option 2? #showerthoughts

*PLS SHARE* Open position for an *Associate Professor* in Machine Learning at our department (@enginyeria-upf.bsky.social / @upf.edu), via the Serra Hunter programme. DEADLINE: January 13th 2025 www.upf.edu/web/personal...

New work out today 📝 Very insightful collaboration with colleagues from Fraunhofer HHI and the great @jenseisert.bsky.social. We offer a preview of explainable AI #xAI for #Quantum learning models #QML ⚛️🧠. Check it out and let us know your thoughts!

Is there a particular reason why authors of published #ML papers don't update the doi on arxiv? I usually find a comment "paper published in XYZ", but right underneath it rads "cite as: arXiv:XYZ". This is not true for papers in quant-ph, for example.

My most successful party trick is still to reveal that I'm actually Spanish and my whole family is Spanish.

Gantt chart for my flights Melbourne - Doha - Berlin, one week after #QTML2024. Any obvious flaws?

🚨Applications for LANL's 2025 Quantum Computing Summer School are open! Please apply here 👇 lanl-summer-school-programs.wizehive.app/program/quan... Reposts appreciated!

Fantastic #quanthm conference that will happen in Berlin, submit! #QCTiP2025

Roguelike-themed street art in Melbourne? ✅!

Downtown Sydney is home to a minion watching all of us

hello world 🖖

The panel discussion on the “future of quantum computing” at #qtml2024 features @harrowing.bsky.social, Andrew Childs, Scott Aaronson, and Ed Farhi and delivers a number of highly insightful points.

Disclaimers appreciated! It's @mvscerezo.bsky.social 's opening talk at #QTML2024