iiinova — where your digital self keeps evolving

Richard Kueng @richardkueng.bsky.social · 02/10/2026

I have been intrigued by the computational complexity of Clifford circuit synthesis since 2023 - motivated by a fun collaboration with Robert Wille+team. Our postdoc Luna Keller now found an elegant argument that settles it: optimal Clifford synthesis is NP-hard. Kudos! scirate.com/arxiv/2610.0...

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Richard Kueng @richardkueng.bsky.social · 20/05/2026

Toll wars! Vielen Dank an meinen Sparring-Partner Christoph Knogler und den Vollprofi Guenter Kaindlsdorfer. Und ein big shoutout an den @fwf-at.bsky.social fuer so eine tolle Initiative.

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Österreichischer Wissenschaftsfonds FWF @fwf-at.bsky.social · 07/05/2026

Was denken Quanteninformatiker @richardkueng.bsky.social und KEBA-CEO Christoph Knogler über die aktuelle und zukünftige Welt? Sie sind demnächst zu Gast beim Talk #WasdieWeltzusammenhält. 🌍💡 📆 19.05.2026, 19:30 Uhr 📌 ORF RadioKulturhaus Alle Infos und Anmeldung 👉 www.fwf.ac.at/entdecken/di...

Richard Küng und Christoph Knogler bei "Was die Welt zusammenhält"
© Florian Voggeneder/KEBA

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Richard Kueng @richardkueng.bsky.social · 22/04/2026

Four QUICK sloths (🦥) from @jku.at in Hogwarts, aehm Oxford: Mario, Marwa, @dgarciamartin.bsky.social and yours truly. QCTiP 2026 (qctipconf.github.io) has been a blast. This was my first time as a PC chair and I am happy+proud how everything turned out. Huge thanks to everyone who contributed!

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Jake Xuereb @curlyqubit.bsky.social · 04/03/2026

The Qalypso School on Quantum Science in Malta returns for its 3rd edition Aug 31 - Sep 4 this year! 🏖️ We have a great line up of lecturers covering Quantum Optimisation, Quantum Thermodynamics and Quantum Gibbs Sampling. Pre-registrations opens today at forms.gle/3NkMJ3Br9V8b... Do Share!

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Richard Kueng @richardkueng.bsky.social · 23/02/2026

(left) how it started: -10°C and a snowstorm in my Austrian home village 🌨️☃️; (right) how it's going: +34°C and burning hot sunshine in Natal, Brazil ☀️🌴. It never ceases to amaze me how far modern airtravel can get us. Also, excited for our school+workshop in Natal 🇧🇷: www.iip.ufrn.br/en/events/qu...

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Richard Kueng @richardkueng.bsky.social · 29/01/2026

Highlight of the day: a crochet workshop for our team at @jku.at. Featuring topology, sloths, tea, cookies and, most importantly, hands-on practice with hook and yarn. Go team!

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Richard Kueng @richardkueng.bsky.social · 08/01/2026

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🎓.

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Richard Kueng @richardkueng.bsky.social · 05/01/2026

Personal highlight: after 3 knee surgeries over the past years and a lot of physiotherapy lessons, I am finally back on the skiing slopes. 🎿🏔️⛷️ And it feels amazing! Huge thanks to all the expert care and dedication that made this possible. Some wounds can heal after all!

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Richard Kueng @richardkueng.bsky.social · 27/10/2025

At our QUICK Quantum Computing Group, we’ve adopted the sloth as our group mascot, a QUICK reminder that good things take time! 🦥 To celebrate International Sloth Day last week, we raised funds and donated to the Sloth Conservation Foundation. Great initiative by Marwa Marso (last row center)!

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Richard Kueng @richardkueng.bsky.social · 21/10/2025

(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...

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Richard Kueng @richardkueng.bsky.social · 13/10/2025

Fruitful crossover between Berlin, Germany, and Linz, Austria. @faehrmion.bsky.social -- MVP of this project -- discovered most of the shadow of the Hadamard test while spending time with our QUICK sloth team in Linz, Austria 🇦🇹.

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Richard Kueng @richardkueng.bsky.social · 10/10/2025

In 2021, Robert Huang, myself & @preskill.bsky.social identified quantum state learning tasks that look hard, but become easy if you jointly process 2 copies. I have long wondered whether such challenges exist for c>2 copies. Turns out yes, there is an infinite hierarchy scirate.com/arxiv/2510.0...

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John Preskill @preskill.bsky.social · 07/10/2025

The pioneering work of Clarke, Devoret, and Martinis showed that very cold electrical circuits behave in ways that exhibit fundamental principles of quantum physics. www.nobelprize.org/prizes/physi...

nobelprize.org

Nobel Prize in Physics 2025

The Nobel Prize in Physics 2025 was awarded jointly to John Clarke, Michel H. Devoret and John M. Martinis "for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an...

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Richard Kueng @richardkueng.bsky.social · 29/09/2025

🇦🇹🇭🇺 Austro-Hungarian reunion at the Hungarian Academy of Sciences. András Gilyén is probably one of the best quantum algorithm designers out there. He co-developed quantum SDPs, QSVT & Gibbs Sampling. No wonder he won an ERC! Happy that he also decided to return to Europe, and proud to be his friend!

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Johannes Kepler University Linz @jku.at · 26/06/2025

💡 Mit einer großen Delegation ist Bundespräsident Alexander Van der Bellen im Mai nach Japan gereist. Mit dabei: die JKU Linz mit ihrem Quantenforscher Richard Küng. Österreich und auch die JKU wird sich auf der EXPO in Osaka präsentieren. 🎌 go.jku.at/n25m1 📸 privat

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Johannes Kepler University Linz @jku.at · 06/06/2025

Um den Einsatz der JKU Forscher*innen im Bereich Wissenschaftkommunikation zu würdigen, wurden die Kepler Awards ins Leben gerufen. Das Interesse war enorm: Es gab mehr als 90 Einreichungen, die sich in vielfältigen Initiativen engagieren. Wir gratulieren alle Gewinner*innen!🏆 go.jku.at/n25l7

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Richard Kueng @richardkueng.bsky.social · 04/06/2025

A short info videoabout MRI imaging @jku.at which combines two of my favorite things: quantum technology ('spins') and math of imaging ('Fourier transforms'). It also made a very real difference for my personal life when I had nasty knee injuries: www.youtube.com/watch?v=NBfb...

youtube.com

Richard Küng: Quanten machen den Alltag wieder möglich | Quanten in deinem Alltag @ JKU Linz

YouTube video by Johannes Kepler Universität Linz

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Jens Eisert @jenseisert.bsky.social · 23/05/2025

In the shadow of the Hadamard test: Using the garbage state for good and further modifications scirate.com/arxiv/2505.1... This work adds an unexpected twist to the Hadamard test by exploiting previously overlooked information.

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Richard Kueng @richardkueng.bsky.social · 29/04/2025

www.quantumscience.at volunteered me to host my first proper workshop (~120 participants) at @jku.at. It really hits differently when you do not only welcome your peers at your academic institution, but also your hometown. We had a blast-furnace! @voestalpine.bsky.social steelfactory pun intended. 🇦🇹

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Richard Kueng @richardkueng.bsky.social · 10/04/2025

Last week I had fun teaching quantum complexity at the kaleidoscope research school at CIRM, Marseille 🇫🇷🥖: (conferences.cirm-math.fr/3225.html. Amazing location, great atmosphere and, finally, enough blackboard space for a lecture of yours truly! 😋 Lecture notes are here: www.jku.at/fileadmin/gr...

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Johannes Fürnkranz @juffi-jku.bsky.social · 07/04/2025

Four Tenure-track positions in AI exclusively for female applicants at @jkulinz.bsky.social! Details available soon at www.jku.at/en/lit-artif...

jku.at

Precall: Four tenure-track professorships

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Richard Kueng @richardkueng.bsky.social · 02/04/2025

A reminiscing article about our quantum music project 'the sound of entanglement' made it into one of Austria's most reputable newspapers - @derstandard.at. More than 3000 people attended, a truly unbelievable experience. Huge thanks to the entire team and to @ya-oeaw.bsky.social for publishing it!

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Richard Kueng @richardkueng.bsky.social · 05/03/2025

Last fall I taught two big classes on **computational complexity** (left selfie) and **quantum computing** (right selfie). We had a blast! Lecture notes are here: www.jku.at/fileadmin/gr..., www.jku.at/fileadmin/gr.... It was a lot of work, but now I am happy+proud to share them. Feedback welcome!

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