Ross Duncan
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rossquantum.bsky.social
Ross Duncan
@rossquantum.bsky.social
Quantum computing lifer. ZX-calculus co-inventor. Quantum compiler compiler and quantum programmer programmer. String diagrammer. Category theoriser.
Head of Quantum Software @ Quantinuum
(I cannot read DMs on Bluesky)
Meanwhile in Tokyo, the temperature has dropped to the point where wearing clothes at all starts to seem reasonable.
September 25, 2025 at 1:06 AM
And the day ended in the pub where Peter Selinger taught us that in number theory, you should always use a bigger ring.
September 9, 2025 at 12:14 PM
The final session was Brad Chase (on certifying fault-tolerance) and Marcin Szyniszewski (on approximate simulation). I do like those yellow @unitary.foundation slides
September 9, 2025 at 12:08 PM
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.
September 9, 2025 at 12:06 PM
Day 2 of #iwqc kicked off with Adam Glos talking about how compile ferminionic things. #quantum #compilers
September 9, 2025 at 11:54 AM
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.
September 9, 2025 at 11:45 AM
And there was a later-than-planned talk from Tanuj Khattar.
September 9, 2025 at 11:41 AM
Here are some pictures from the day. Featuring @profdanbrowne.bsky.social, Madelyn Cain, and Franciso Garcia-Herrero.
September 9, 2025 at 11:02 AM
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
September 6, 2025 at 1:03 PM
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
September 6, 2025 at 9:01 AM
International Workshop on Quantum Compilers began this morning with a great invited talk from Olivia Di Matteo!
#iwqc #quantum #quantumcomputing #compilers
September 6, 2025 at 8:53 AM
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
June 24, 2025 at 11:44 AM
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
June 24, 2025 at 11:38 AM
🧵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
June 24, 2025 at 11:30 AM
🧵 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
June 24, 2025 at 11:24 AM
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
June 24, 2025 at 6:33 AM
May 23, 2025 at 12:57 AM
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
May 23, 2025 at 12:57 AM
We have arrived. This will be home of the next year. #tokyo
March 31, 2025 at 11:54 AM
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!
March 25, 2025 at 2:04 PM
Last but not least, Mark Koch talks about Guppy.
#quantinuum #guppylang #popl #planqc
January 26, 2025 at 12:51 AM
Some more PLanQC photos : Frank Fu, Jennifer Paykin, and You-Fang Chen.
January 26, 2025 at 12:45 AM
And now here's Agustin Borgna talking about HUGR at PLanQC 2025. #planqc #popl #quantumcomputing #quantinuum
January 25, 2025 at 5:29 PM
Kaitlin Smith opens PLanQC 2025 with an overview of quantum software in her keynote talk. #planqc #popl #quantumcomputing
January 25, 2025 at 4:57 PM
December 12, 2024 at 10:30 AM