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)
Head of Quantum Software @ Quantinuum
(I cannot read DMs on Bluesky)
Reposted by Ross Duncan
This is horrific. AI hallucinates references, Google Scholar swallows them, libraries adapt their records to Google Scholar as ground truth, and an inexistent paper becomes reality.
Finally, if you can get through the paywall this piece from earlier in the week illuminates how the experience above is just a tiny part of an industrial-scale, global, and sector-wide catastrophe of AI and citations to nonexistent papers in academic publishing bsky.app/profile/mile...
Academics and technologists are sounding the alarm about a growing crisis in scholarship as we know it: AI-generated citations of nonexistent papers that have infested real journals. Despite being fake, the sources are widely assumed to be authentic the more they appear in published literature.
December 21, 2025 at 2:57 PM
This is horrific. AI hallucinates references, Google Scholar swallows them, libraries adapt their records to Google Scholar as ground truth, and an inexistent paper becomes reality.
Reposted by Ross Duncan
Just decline the peer review invitation.
What are you people even doing?
What are you people even doing?
More than half of researchers now use AI for peer review — often against guidance
A survey of 1,600 academics found that more than 50% have used artificial-intelligence tools while peer reviewing manuscripts.
www.nature.com
December 16, 2025 at 10:39 PM
Just decline the peer review invitation.
What are you people even doing?
What are you people even doing?
Scientists should read this.
artificialbureaucracy.substack.com/p/context-wi...
artificialbureaucracy.substack.com/p/context-wi...
Context Widows
or, of GPUs, LPUs, and Goal Displacement
artificialbureaucracy.substack.com
December 16, 2025 at 6:09 AM
Scientists should read this.
artificialbureaucracy.substack.com/p/context-wi...
artificialbureaucracy.substack.com/p/context-wi...
Reposted by Ross Duncan
In search of better work–life balance, @spendier.bsky.social gave up her job as a tenured physics professor and looked for jobs in industry. The transition required repackaging her skills. She now runs @xprize.org’s competition in quantum applications. #whatcanphysicistsdo
Kathrin Spendier leads a multimillion-dollar quantum competition
physicstoday.aip.org
November 26, 2025 at 3:17 PM
In search of better work–life balance, @spendier.bsky.social gave up her job as a tenured physics professor and looked for jobs in industry. The transition required repackaging her skills. She now runs @xprize.org’s competition in quantum applications. #whatcanphysicistsdo
Reposted by Ross Duncan
can't stop watching this clip of a tesla Optimus teleoperator taking his headset off before properly logging out the robot
December 8, 2025 at 9:29 AM
can't stop watching this clip of a tesla Optimus teleoperator taking his headset off before properly logging out the robot
Reposted by Ross Duncan
I just published: ERC-Plus: jackpot science or missed chance to fix academia?
My reflections on ERC-Plus, Europe’s newest ultra-competitive research grant and what it tells us about the academic culture we’re building.
medium.com/p/erc-plus-j...
My reflections on ERC-Plus, Europe’s newest ultra-competitive research grant and what it tells us about the academic culture we’re building.
medium.com/p/erc-plus-j...
ERC-Plus: jackpot science or missed chance to fix academia?
My reflections on ERC-Plus, Europe’s newest ultra-competitive research grant and what it tells us about the academic culture we’re…
medium.com
December 3, 2025 at 11:42 AM
I just published: ERC-Plus: jackpot science or missed chance to fix academia?
My reflections on ERC-Plus, Europe’s newest ultra-competitive research grant and what it tells us about the academic culture we’re building.
medium.com/p/erc-plus-j...
My reflections on ERC-Plus, Europe’s newest ultra-competitive research grant and what it tells us about the academic culture we’re building.
medium.com/p/erc-plus-j...
Want to hear more about #quantinuum's Helios #quantum computer? There's a webinar. It's on Teams, Tuesday 11 December, twice!.
-- 3pm GMT / 9am MT events.teams.microsoft.com/event/37fe2b...
-- 11pm GMT / 4pm MT events.teams.microsoft.com/event/35bd82...
-- 3pm GMT / 9am MT events.teams.microsoft.com/event/37fe2b...
-- 11pm GMT / 4pm MT events.teams.microsoft.com/event/35bd82...
Microsoft Virtual Events Powered by Teams
Microsoft Virtual Events Powered by Teams
events.teams.microsoft.com
December 2, 2025 at 11:10 PM
Want to hear more about #quantinuum's Helios #quantum computer? There's a webinar. It's on Teams, Tuesday 11 December, twice!.
-- 3pm GMT / 9am MT events.teams.microsoft.com/event/37fe2b...
-- 11pm GMT / 4pm MT events.teams.microsoft.com/event/35bd82...
-- 3pm GMT / 9am MT events.teams.microsoft.com/event/37fe2b...
-- 11pm GMT / 4pm MT events.teams.microsoft.com/event/35bd82...
Reposted by Ross Duncan
Since the community here is very familiar with VQAs and their pitfalls, Here's my 2 cents on the the topic, would love to hear what everyone thinks too.
TLDR: "VQAs are doomed, and that's great news for QC"
1/ however long it's gonna take
TLDR: "VQAs are doomed, and that's great news for QC"
1/ however long it's gonna take
November 28, 2025 at 1:23 PM
Since the community here is very familiar with VQAs and their pitfalls, Here's my 2 cents on the the topic, would love to hear what everyone thinks too.
TLDR: "VQAs are doomed, and that's great news for QC"
1/ however long it's gonna take
TLDR: "VQAs are doomed, and that's great news for QC"
1/ however long it's gonna take
RIP Jimmy Cliff.
www.youtube.com/watch?v=OChr...
www.youtube.com/watch?v=OChr...
Jimmy Cliff - Vietnam -
YouTube video by Vacacion08
www.youtube.com
November 25, 2025 at 4:55 AM
RIP Jimmy Cliff.
www.youtube.com/watch?v=OChr...
www.youtube.com/watch?v=OChr...
Reposted by Ross Duncan
Reposted by Ross Duncan
Having Johnson & Cummings in Downing Street when Covid struck was, just like Brexit, an entirely avoidable disaster caused largely by utterly appalling journalism. And now exactly the same clowns, arses & bigots with bylines are rolling out the red carpet for Farage.
www.thetimes.com/article/1b15...
www.thetimes.com/article/1b15...
Covid inquiry live: ‘Inexcusable’ delays under Johnson led to 23,000 deaths
Lockdowns may have been avoided if Boris Johnson’s government had acted faster, damning report finds
www.thetimes.com
November 20, 2025 at 5:14 PM
Having Johnson & Cummings in Downing Street when Covid struck was, just like Brexit, an entirely avoidable disaster caused largely by utterly appalling journalism. And now exactly the same clowns, arses & bigots with bylines are rolling out the red carpet for Farage.
www.thetimes.com/article/1b15...
www.thetimes.com/article/1b15...
Reposted by Ross Duncan
Great thread by @jakearkinstall.bsky.social about the software picture behind our recently launched Helios machine:
threadreaderapp.com/thread/19905...
threadreaderapp.com/thread/19905...
Thread by @JakeArkinstall on Thread Reader App
@JakeArkinstall: The Helios paper from @QuantinuumQC is out on arxiv - It is feat of quantum hardware and software. If you follow me, you're probably a software nerd. I want take a scenic tour of a......
threadreaderapp.com
November 19, 2025 at 12:19 AM
Great thread by @jakearkinstall.bsky.social about the software picture behind our recently launched Helios machine:
threadreaderapp.com/thread/19905...
threadreaderapp.com/thread/19905...
What can you do with a state of the art quantum computer? For example, you can simulate superconducting materials.
arxiv.org/abs/2511.02125
#quantum #quantumcomputing #quantinuum #helios
arxiv.org/abs/2511.02125
#quantum #quantumcomputing #quantinuum #helios
Superconducting pairing correlations on a trapped-ion quantum computer
The Fermi-Hubbard model is the starting point for the simulation of many strongly correlated materials, including high-temperature superconductors, whose modelling is a key motivation for the construc...
arxiv.org
November 11, 2025 at 7:27 AM
What can you do with a state of the art quantum computer? For example, you can simulate superconducting materials.
arxiv.org/abs/2511.02125
#quantum #quantumcomputing #quantinuum #helios
arxiv.org/abs/2511.02125
#quantum #quantumcomputing #quantinuum #helios
Our new Helios quantum computer. Read all about it.
arxiv.org/abs/2511.05465
#quantum #quantumcomputing #quantinuum #helios
arxiv.org/abs/2511.05465
#quantum #quantumcomputing #quantinuum #helios
Helios: A 98-qubit trapped-ion quantum computer
We report on Quantinuum Helios, a 98-qubit trapped-ion quantum processor based on the quantum charge-coupled device (QCCD) architecture. Helios features $^{137}$Ba$^{+}$ hyperfine qubits, all-to-all c...
arxiv.org
November 10, 2025 at 2:08 AM
Our new Helios quantum computer. Read all about it.
arxiv.org/abs/2511.05465
#quantum #quantumcomputing #quantinuum #helios
arxiv.org/abs/2511.05465
#quantum #quantumcomputing #quantinuum #helios
Reposted by Ross Duncan
Quantinuum Helios is a powerful star!
Exclusive: Quantinuum unveils its latest system, Helios, inching the industry toward the day the technology will deliver meaningful commercial value on.wsj.com/4otzoXl
Exclusive | The Next Big Quantum Computer Has Arrived
Quantinuum unveiled its latest system, Helios, inching the industry toward the day the technology will deliver meaningful commercial value.
on.wsj.com
November 6, 2025 at 9:40 AM
Quantinuum Helios is a powerful star!
Reposted by Ross Duncan
I was fortunate enough to publish a paper on the same day as Helios launch, showcasing the power of Helios. We report a dynamic approach for certified randomness amplification scirate.com/arxiv/2511.0...
November 6, 2025 at 12:50 PM
I was fortunate enough to publish a paper on the same day as Helios launch, showcasing the power of Helios. We report a dynamic approach for certified randomness amplification scirate.com/arxiv/2511.0...
Reposted by Ross Duncan
@quantinuum.bsky.social's collaboration with Singapore’s quantum ecosystem is stepping up to be a strategic partnership! An agreement announced on 5 Nov will see Singapore host Quantinuum’s Helios system, and Quantinuum establish a new R&D and Operations Centre in Singapore. buff.ly/kBS6TTn
November 6, 2025 at 12:35 AM
@quantinuum.bsky.social's collaboration with Singapore’s quantum ecosystem is stepping up to be a strategic partnership! An agreement announced on 5 Nov will see Singapore host Quantinuum’s Helios system, and Quantinuum establish a new R&D and Operations Centre in Singapore. buff.ly/kBS6TTn
Reposted by Ross Duncan
New quantum hardware puts the mechanics in quantum mechanics https://arstechni.ca... #quantumcomputing #quantummechanics #Computerscience #quantinuum #trappedion #Science #Physics #Helios
November 5, 2025 at 9:03 PM
New quantum hardware puts the mechanics in quantum mechanics https://arstechni.ca... #quantumcomputing #quantummechanics #Computerscience #quantinuum #trappedion #Science #Physics #Helios
Helios is finally announced! Aside from being a better quantum computer by the usual metrics (more qubits, better gates, faster operation) it's also the first quantum computer that is also a classical computer -- i.e. programs with control flow, function calls, classical logic and arithmetic...
Quantinuum has unveiled a third-generation quantum computer that could be easier to scale up than rival approaches.
A new ion-based quantum computer makes error correction simpler
Quantinuum has unveiled a third-generation quantum computer that could be easier to scale up than rival approaches.
www.technologyreview.com
November 10, 2025 at 12:56 AM
Helios is finally announced! Aside from being a better quantum computer by the usual metrics (more qubits, better gates, faster operation) it's also the first quantum computer that is also a classical computer -- i.e. programs with control flow, function calls, classical logic and arithmetic...
Cool new results from my colleagues!
Learn more about this discovery in the scientific paper on "Error detection without post-selection in adaptive quantum circuits".
🔬: arxiv.org/abs/2509.25326
🔬: arxiv.org/abs/2509.25326
Error detection without post-selection in adaptive quantum circuits
Current quantum computers are limited by errors, but have not yet achieved the scale required to benefit from active error correction in large computations. We show how simulations of open quantum sys...
arxiv.org
October 30, 2025 at 5:37 PM
Cool new results from my colleagues!
Reposted by Ross Duncan
Reminder of the preferred approach when sharing arXiv preprint links
October 18, 2025 at 11:33 AM
Reminder of the preferred approach when sharing arXiv preprint links
"Nothing in fault-tolerance makes sense in except in light of ZX" Thanks Craig :-)
(The rest of the talk is good too!)
#zxcalculus #quantum #qec
(The rest of the talk is good too!)
#zxcalculus #quantum #qec
Here's the recording of my talk at the Simons institute quantum industry day: www.youtube.com/live/SULOaOQ...
And the slides: docs.google.com/presentation...
I was also on the panel discussion at the end of the day (also in the linked playlist).
And the slides: docs.google.com/presentation...
I was also on the panel discussion at the end of the day (also in the linked playlist).
Optimizing the Annoying Stuff: Reducing Costs Obscured by the Abstract Circuit Model
YouTube video by Simons Institute for the Theory of Computing
www.youtube.com
October 17, 2025 at 7:41 AM
"Nothing in fault-tolerance makes sense in except in light of ZX" Thanks Craig :-)
(The rest of the talk is good too!)
#zxcalculus #quantum #qec
(The rest of the talk is good too!)
#zxcalculus #quantum #qec
Reposted by Ross Duncan
The two #GuppyLang papers are also out on arXiv now:
GUPPY: Pythonic Quantum-Classical Programming Guppy (PLanQC '24): scirate.com/arxiv/2510.1...
Imperative Quantum Programming with Ownership and Borrowing in Guppy Guppy (PLanQC '25): scirate.com/arxiv/2510.1...
Guppy docs at guppylang.org
GUPPY: Pythonic Quantum-Classical Programming Guppy (PLanQC '24): scirate.com/arxiv/2510.1...
Imperative Quantum Programming with Ownership and Borrowing in Guppy Guppy (PLanQC '25): scirate.com/arxiv/2510.1...
Guppy docs at guppylang.org
October 16, 2025 at 4:06 PM
The two #GuppyLang papers are also out on arXiv now:
GUPPY: Pythonic Quantum-Classical Programming Guppy (PLanQC '24): scirate.com/arxiv/2510.1...
Imperative Quantum Programming with Ownership and Borrowing in Guppy Guppy (PLanQC '25): scirate.com/arxiv/2510.1...
Guppy docs at guppylang.org
GUPPY: Pythonic Quantum-Classical Programming Guppy (PLanQC '24): scirate.com/arxiv/2510.1...
Imperative Quantum Programming with Ownership and Borrowing in Guppy Guppy (PLanQC '25): scirate.com/arxiv/2510.1...
Guppy docs at guppylang.org
Reposted by Ross Duncan
Reposted by Ross Duncan
Interesting bit of sociology: They are really studiously avoiding any mention of quantum computing. First and only mention came in the last few words of the presentation by Johansson.
October 7, 2025 at 10:03 AM
Interesting bit of sociology: They are really studiously avoiding any mention of quantum computing. First and only mention came in the last few words of the presentation by Johansson.