iiinova — where your digital self keeps evolving

Ross Duncan @rossquantum.bsky.social · 25/09/2026

I was in Toronto for IEEE #Quantum Week / IWQC / QRE. Here me giving a talk about #guppylang at etc Quantum Software 2.6 workshop and with my co-panelists, Rafael Haenel, Roger Luo, Brad Chase, Sebastian Feld, and Mathys Rennela. #guppy #quantumcomputing guppylang.org

Ross Duncan giving a talk next to a giant picture of a fish.

081

Ross Duncan @rossquantum.bsky.social · 25/09/2025

Meanwhile in Tokyo, the temperature has dropped to the point where wearing clothes at all starts to seem reasonable.

Cityscape of Tokyo, blue skies, fluffy clouds. Skytree visible in distance.

100

Ross Duncan @rossquantum.bsky.social · 09/09/2025

And the day ended in the pub where Peter Selinger taught us that in number theory, you should always use a bigger ring.

Peter Selinger and Eddie Schoute in a bar looking at Peter's notepad while Peter explains that most of Shor's algorithm was already known to Fermat. Except the quantum part.

181

Ross Duncan @rossquantum.bsky.social · 09/09/2025

The final session was Brad Chase (on certifying fault-tolerance) and Marcin Szyniszewski (on approximate simulation). I do like those yellow @unitary.foundation slides

121

Ross Duncan @rossquantum.bsky.social · 09/09/2025

The continued with a bunch of great talks from @eddieschoute.bsky.social , Erik Weilandt, Ali Javadi-Abhari (not pictured), Vivien Vandaele (looked very similar the day before), Maxime Garnier and Jordan Sullivan.

131

Ross Duncan @rossquantum.bsky.social · 09/09/2025

Day 2 of #iwqc kicked off with Adam Glos talking about how compile ferminionic things. #quantum #compilers

Adam Glos pointing at a huge slide saying "Jordan-Wigner"

100

Ross Duncan @rossquantum.bsky.social · 09/09/2025

Then we had to get a boat to an island for the conference dinner. I have no pictures from the dinner, or the Thirsty Scholar afterwards, but here's some from the boat. @qec.codes did not really need sunglasses it should be said.

A group of quantum computer scientists standing on the deck of a boat. There is no view, only fog.

110

Ross Duncan @rossquantum.bsky.social · 09/09/2025

And there was a later-than-planned talk from Tanuj Khattar.

110

Ross Duncan @rossquantum.bsky.social · 09/09/2025

Here are some pictures from the day. Featuring @profdanbrowne.bsky.social, Madelyn Cain, and Franciso Garcia-Herrero.

Madelyn Cain standing next to a giant slide about benchmarking repeated QEC.

Dan Browne giving a talk about ensemble decoding.

Francisco Garcia-Herrero giving a talk about decoding on FPGAs. The giant slide says "motivations".

The lecture room was very nice... but a bit too big for the small audience.

030

Ross Duncan @rossquantum.bsky.social · 06/09/2025

There were a bunch of other great talks. Pictured here: Kosei Mori, Daniele Trisciani, David Wierichs, and Vivien Vandaele. I somehow failed to take a photo of Yannick Stade, who gave the second talk of the day! #iwqc #quantum #compilers

150

Ross Duncan @rossquantum.bsky.social · 06/09/2025

Mark Koch opens the second session of #iwqc talking about how to optimise "dynamic circuits". Personally I don't like this term -- "quantum programs" is better! (I do like Mark's t-shirt though.) #quantum #quantumcomputing #compilers #tket

Mark Koch on a stage in an auditorium next to a giant screen showing a very simple quantum circuit. Mark is wearing a very cool t-shirt.

180

Ross Duncan @rossquantum.bsky.social · 06/09/2025

International Workshop on Quantum Compilers began this morning with a great invited talk from Olivia Di Matteo! #iwqc #quantum #quantumcomputing #compilers

Olivia Di Matteo stands next to a giant screen showing a quantum circuit.

4101

Ross Duncan @rossquantum.bsky.social · 24/06/2025

There are a lot of cabinets... anyway if you were wondering what about 8 million compute cores looks like -- it looks like this. (ありがとうございます to Sato-sensei for showing us around) #riken #fugaku #supercomputer

A visitor gets his picture taken in front of Fugaku.

Professor Sato telling visitors about the Fugaku supercomputer.

010

Ross Duncan @rossquantum.bsky.social · 24/06/2025

But no one wants to see boring #quantum computers. We're here for a real celebrity : Fugaku. Each cpu has 60ish cores, each node has 2 cpus, each cabinet has ... lots... Did I mention it's water cooled? #riken #fugaku #supercomputer

110

Ross Duncan @rossquantum.bsky.social · 24/06/2025

🧵2/4 The actual IBM System Two is in the corridor, behind bullet proof glass. Pretty snazzy. Various shiny quantum paraphernalia in the hallway. #ibmq #riken #quantum

The chandelier of a dilution fridge, three of them.

The Heron quantum processor. (Or at least its packaging)

The IBM System Two -- it's actually working, but from the corridor you cannot tell.

100

Ross Duncan @rossquantum.bsky.social · 24/06/2025

🧵 Went to visit RIKEN in Kobe today for the launch of their new IBM system. (Quantinuum's system @ RIKEN has been operational for months 😂 ) Here's some photos. Featuring: Jay Gambetta, Kentaro Yamamoto, the Fugaku supercomputer, and me. #quantum #quantumcomputing #riken #fugaku #quantinuum #ibmq

Cool lecture room where the curtains open up to reveal the supercomputer in its hall below.

181

Ross Duncan @rossquantum.bsky.social · 24/06/2025

Was in Seoul last week for the Workshop on Quantum Software at PLDI. Nice workshop. No decent pictures, except this evidence of some "Berlin style" advertising for Qrisp.... #pldi #wqs #qrisp #quantumcomputing

010

Ross Duncan @rossquantum.bsky.social · 23/05/2025

Some photos from the recent RIKEN workshop on HPC-Quantum in Osaka. Featuring Enrico Rinaldi, Mike Foss-Feig, @fridaysimon.bsky.social, Keisuke Fujii, and Nathan Lysne. @johnchildren.bsky.social and I also gave a talk, as did quite a few others. #quantinuum #riken #quantumcomputing

Enrico Rinaldi standing behind a podium. The podium has "Quantinuum" written on it.

Mike Foss-Feig standing behind a podium. The podium has "Quantinuum" written on it.

Simon Burton giving a talk. Behind there is a screen showing a plastic model of a qubit.

291

Ross Duncan @rossquantum.bsky.social · 31/03/2025

We have arrived. This will be home of the next year. #tokyo

Monochrome picture of Tokyo skyline on a grey day. Tokyo Sky Tree visible in the distance,

050

Ross Duncan @rossquantum.bsky.social · 25/03/2025

Starting next week I'll be based in Tokyo. Still working at Quantinuum. Still doing mostly the same stuff. If you're in the area hit me up!

Japanese visa document which claims that Ross Duncan is a "Highly Skilled Pro".

141

Ross Duncan @rossquantum.bsky.social · 26/01/2025

Last but not least, Mark Koch talks about Guppy. #quantinuum #guppylang #popl #planqc

Mark Koch standing next to a psychedelic image of a fish.

020

Ross Duncan @rossquantum.bsky.social · 26/01/2025

Some more PLanQC photos : Frank Fu, Jennifer Paykin, and You-Fang Chen.

Frank Fu explaining reversal and control in Proto-Quipper

Jennifer Parkin talks about projective Cliffords.

Yu-Fang Chen advertising a new workshop on Verification of Quantum Computing.

100

Ross Duncan @rossquantum.bsky.social · 25/01/2025

And now here's Agustin Borgna talking about HUGR at PLanQC 2025. #planqc #popl #quantumcomputing #quantinuum

120

Ross Duncan @rossquantum.bsky.social · 25/01/2025

Kaitlin Smith opens PLanQC 2025 with an overview of quantum software in her keynote talk. #planqc #popl #quantumcomputing

2110

Ross Duncan @rossquantum.bsky.social · 24/10/2024

Vanya Eccles presents #quantinuum #nexus at the Munich Quantum Software Forum! If this interests you, check it out here: nexus.quantinuum.com/signup #mqsf #quantum #quantumcomputing

023

Ross Duncan @rossquantum.bsky.social · 11/09/2024

The 6th International Workshop on Quantum Compilation kicks off today! The first invited talk is Robert Wille from TUM talking about using design automation approaches to compilation problems in quantum computing. #iwqc24 #quantum #quantumcomputing

000