Arne L. Grimsmo
@arnegrimsmo.bsky.social
Taking partial derivatives of quantum computers at AWS
Reposted by Arne L. Grimsmo
Apparently September 5th is "cultivate with fold-transversal S" day:
arxiv.org/abs/2509.05232
arxiv.org/abs/2502.017...
arxiv.org/abs/2509.05212
arxiv.org/abs/2509.05232
arxiv.org/abs/2502.017...
arxiv.org/abs/2509.05212
September 8, 2025 at 9:53 PM
Apparently September 5th is "cultivate with fold-transversal S" day:
arxiv.org/abs/2509.05232
arxiv.org/abs/2502.017...
arxiv.org/abs/2509.05212
arxiv.org/abs/2509.05232
arxiv.org/abs/2502.017...
arxiv.org/abs/2509.05212
Exciting cultivation updates from my collaborator @yotamvaknin.bsky.social!
Exciting day for magic state generation!
I'm taking a quick break from changing diapers to let you all know we updated our Cultivation paper with new protocols!
@shohamjac.bsky.social @arnegrimsmo.bsky.social #AlexRetzker
I'm taking a quick break from changing diapers to let you all know we updated our Cultivation paper with new protocols!
@shohamjac.bsky.social @arnegrimsmo.bsky.social #AlexRetzker
September 8, 2025 at 1:46 PM
Exciting cultivation updates from my collaborator @yotamvaknin.bsky.social!
Come join the (classical) simulation (of quantum systems) team at AWS!
We are looking for an experienced quantum scientist and coder. If you know how to (classically) simulate quantum systems, particularly cQED models, and you like building performant tools that people want to use, check out this job ad! www.amazon.jobs/en/jobs/2999...
June 16, 2025 at 10:03 PM
Come join the (classical) simulation (of quantum systems) team at AWS!
Originally, when we started looking at this almost 1.5 yrs ago now, I was very excited about the fact that you just need a small, constant (3 to be exact) number of erasure qubits in an injection patch, independent of the target size of the final surface code. Before we got around to writing up the
This was a fun project looking at erasure qubits for magic state injection and cultivation, with Shoham Jacoby, @yotamvaknin.bsky.social, and Alex Retzker: x.com/shohamjacoby...
Shoham Jacoby on X: "Published a new preprint with @yotamvaknin #Alexretzker @ArneGrimsmo! We show that using erasure qubits can enable cleaner magic state injection and cultivation, potentially allowing for the generation of application-ready magic states without distillation. 🧵+ meme at the end https://t.co/Kr5KeIUW0P" / X
Published a new preprint with @yotamvaknin #Alexretzker @ArneGrimsmo! We show that using erasure qubits can enable cleaner magic state injection and cultivation, potentially allowing for the generation of application-ready magic states without distillation. 🧵+ meme at the end https://t.co/Kr5KeIUW0P
x.com
April 7, 2025 at 9:06 PM
Originally, when we started looking at this almost 1.5 yrs ago now, I was very excited about the fact that you just need a small, constant (3 to be exact) number of erasure qubits in an injection patch, independent of the target size of the final surface code. Before we got around to writing up the
This was a fun project looking at erasure qubits for magic state injection and cultivation, with Shoham Jacoby, @yotamvaknin.bsky.social, and Alex Retzker: x.com/shohamjacoby...
Shoham Jacoby on X: "Published a new preprint with @yotamvaknin #Alexretzker @ArneGrimsmo! We show that using erasure qubits can enable cleaner magic state injection and cultivation, potentially allowing for the generation of application-ready magic states without distillation. 🧵+ meme at the end https://t.co/Kr5KeIUW0P" / X
Published a new preprint with @yotamvaknin #Alexretzker @ArneGrimsmo! We show that using erasure qubits can enable cleaner magic state injection and cultivation, potentially allowing for the generation of application-ready magic states without distillation. 🧵+ meme at the end https://t.co/Kr5KeIUW0P
x.com
April 7, 2025 at 8:26 PM
This was a fun project looking at erasure qubits for magic state injection and cultivation, with Shoham Jacoby, @yotamvaknin.bsky.social, and Alex Retzker: x.com/shohamjacoby...
Someone should write "Game of qLDPC codes" along the lines of Litinski's classic for surface codes and review all the recent stuff on computation for us non-experts.
April 7, 2025 at 3:31 PM
Someone should write "Game of qLDPC codes" along the lines of Litinski's classic for surface codes and review all the recent stuff on computation for us non-experts.
Reposted by Arne L. Grimsmo
Are you a fan of fault-tolerant non-Clifford gates on the 2D surface code?
Have you been wondering what was really going on in the protocols by Bombín and Brown?
We have a new work for you: arxiv.org/abs/2503.15751
Have you been wondering what was really going on in the protocols by Bombín and Brown?
We have a new work for you: arxiv.org/abs/2503.15751
Universal fault tolerant quantum computation in 2D without getting tied in knots
We show how to perform scalable fault-tolerant non-Clifford gates in two dimensions by introducing domain walls between the surface code and a non-Abelian topological code whose codespace is stabilize...
arxiv.org
March 21, 2025 at 4:21 AM
Are you a fan of fault-tolerant non-Clifford gates on the 2D surface code?
Have you been wondering what was really going on in the protocols by Bombín and Brown?
We have a new work for you: arxiv.org/abs/2503.15751
Have you been wondering what was really going on in the protocols by Bombín and Brown?
We have a new work for you: arxiv.org/abs/2503.15751
Reposted by Arne L. Grimsmo
Our paper that tells you how to make millisecond transmons just appeared. Congrats Matthew, Faranak, and team! In collaboration with Nathalie de Leon and Bob Cava, and building on five years of work in C2QA, one of the five DOE National Quantum Initiative Centers.
arxiv.org/abs/2503.14798
arxiv.org/abs/2503.14798
2D transmons with lifetimes and coherence times exceeding 1 millisecond
Materials improvements are a powerful approach to reducing loss and decoherence in superconducting qubits because such improvements can be readily translated to large scale processors. Recent work imp...
arxiv.org
March 20, 2025 at 1:24 PM
Our paper that tells you how to make millisecond transmons just appeared. Congrats Matthew, Faranak, and team! In collaboration with Nathalie de Leon and Bob Cava, and building on five years of work in C2QA, one of the five DOE National Quantum Initiative Centers.
arxiv.org/abs/2503.14798
arxiv.org/abs/2503.14798
Reposted by Arne L. Grimsmo
Breaking! Leaked photo from Amazon quantum computing lab running repetition code on 5 cat qubits!
Paper: www.nature.com/articles/s41...
Photo: coleandmarmalade.com/2022/05/10/f...
Paper: www.nature.com/articles/s41...
Photo: coleandmarmalade.com/2022/05/10/f...
February 27, 2025 at 4:46 PM
Breaking! Leaked photo from Amazon quantum computing lab running repetition code on 5 cat qubits!
Paper: www.nature.com/articles/s41...
Photo: coleandmarmalade.com/2022/05/10/f...
Paper: www.nature.com/articles/s41...
Photo: coleandmarmalade.com/2022/05/10/f...
Reposted by Arne L. Grimsmo
Today Nature published measurement results from Ocelot, the new quantum chip created at the AWS Center for Quantum Computing at Caltech.
There is still far to go, but we hope that Ocelot’s unique architecture will shorten the path to quantum utility that benefits the world.
There is still far to go, but we hope that Ocelot’s unique architecture will shorten the path to quantum utility that benefits the world.
February 27, 2025 at 12:50 PM
Today Nature published measurement results from Ocelot, the new quantum chip created at the AWS Center for Quantum Computing at Caltech.
There is still far to go, but we hope that Ocelot’s unique architecture will shorten the path to quantum utility that benefits the world.
There is still far to go, but we hope that Ocelot’s unique architecture will shorten the path to quantum utility that benefits the world.
I get too many space pictures in my Bluesky feed. How to tell the algorithm I’m just here for quantum?
January 18, 2025 at 2:30 PM
I get too many space pictures in my Bluesky feed. How to tell the algorithm I’m just here for quantum?
Reposted by Arne L. Grimsmo
Submissions for QEC 2025 are now open through March 28.
This will easily be the most exciting conference on quantum error correction yet!
Conference homepage:
qec25.yalepages.org
EasyChair submission page:
easychair.org/my/conferenc...
This will easily be the most exciting conference on quantum error correction yet!
Conference homepage:
qec25.yalepages.org
EasyChair submission page:
easychair.org/my/conferenc...
QEC25
qec25.yalepages.org
January 11, 2025 at 1:23 AM
Submissions for QEC 2025 are now open through March 28.
This will easily be the most exciting conference on quantum error correction yet!
Conference homepage:
qec25.yalepages.org
EasyChair submission page:
easychair.org/my/conferenc...
This will easily be the most exciting conference on quantum error correction yet!
Conference homepage:
qec25.yalepages.org
EasyChair submission page:
easychair.org/my/conferenc...
Reposted by Arne L. Grimsmo
The best conference series on quantum error correction and fault tolerance is back! Submissions are now open for QEC 2025 that will take place in Yale this August.
Submissions for QEC 2025 are now open through March 28.
This will easily be the most exciting conference on quantum error correction yet!
Conference homepage:
qec25.yalepages.org
EasyChair submission page:
easychair.org/my/conferenc...
This will easily be the most exciting conference on quantum error correction yet!
Conference homepage:
qec25.yalepages.org
EasyChair submission page:
easychair.org/my/conferenc...
QEC25
qec25.yalepages.org
January 11, 2025 at 8:43 AM
The best conference series on quantum error correction and fault tolerance is back! Submissions are now open for QEC 2025 that will take place in Yale this August.
Mostly agree with this optimistic take by Huang. I think it could take longer given that none of the currently pursued qubit technologies are totally convincing yet, and they all face some serious engineering cliffs we don't know how to solve. My optimistic take is that we see a "winner" emerge over
Jensen Huang is more informed about quantum computing than the CEOs of IBM, Google, and Microsoft combined!
“If you kind of said 15 years for very useful quantum computers, that would probably be on the early side. If you said 30, it’s probably on the late side,”
finance.yahoo.com/news/quantum...
“If you kind of said 15 years for very useful quantum computers, that would probably be on the early side. If you said 30, it’s probably on the late side,”
finance.yahoo.com/news/quantum...
Quantum Stocks Drop as Nvidia CEO Sees Use Years Away
(Bloomberg) -- The shares of IonQ Inc. and other companies linked to quantum computing tumbled on Wednesday, after Nvidia Corp. Chief Executive Officer Jensen Huang said that “very useful” quantum com...
finance.yahoo.com
January 9, 2025 at 3:16 PM
Mostly agree with this optimistic take by Huang. I think it could take longer given that none of the currently pursued qubit technologies are totally convincing yet, and they all face some serious engineering cliffs we don't know how to solve. My optimistic take is that we see a "winner" emerge over
Reposted by Arne L. Grimsmo
Have SIC-POVMs finally been found? @sflammia.bsky.social arxiv.org/abs/2501.03970
A Constructive Approach to Zauner's Conjecture via the Stark Conjectures
We propose a construction of $d^2$ complex equiangular lines in $\mathbb{C}^d$, also known as SICPOVMs, which were conjectured by Zauner to exist for all d. The construction gives a putatively complet...
arxiv.org
January 8, 2025 at 4:54 AM
Have SIC-POVMs finally been found? @sflammia.bsky.social arxiv.org/abs/2501.03970
Reposted by Arne L. Grimsmo
Roadtrip! Heading from @equscoe.bsky.social EQUS workshop in Noosa to the @psiquantum.bsky.social Brisbane office opening, with Tom Stace and Andrew Doherty. In Gerard Milburn’s car! Going to be a very #quantum drive
December 11, 2024 at 10:16 PM
Roadtrip! Heading from @equscoe.bsky.social EQUS workshop in Noosa to the @psiquantum.bsky.social Brisbane office opening, with Tom Stace and Andrew Doherty. In Gerard Milburn’s car! Going to be a very #quantum drive
Reposted by Arne L. Grimsmo
we need a program where skilled software developers can get a visa really fast
call it the O(1) visa
call it the O(1) visa
December 1, 2024 at 8:47 PM
we need a program where skilled software developers can get a visa really fast
call it the O(1) visa
call it the O(1) visa
Reposted by Arne L. Grimsmo
New essay: "How to be a wise optimist about science and technology?"
michaelnotebook.com/optimism/ind...
michaelnotebook.com/optimism/ind...
How to be a wise optimist about science and technology?
michaelnotebook.com
December 1, 2024 at 2:13 AM
New essay: "How to be a wise optimist about science and technology?"
michaelnotebook.com/optimism/ind...
michaelnotebook.com/optimism/ind...
Reposted by Arne L. Grimsmo
We're hiring quantum theory faculty at Virginia Tech. This is an open-rank position in the CS or EE department at the new Center in Alexandria, VA, just outside of Washington, DC. This is the first of several new hires at the Center. Come join us (pls RT)!
careers.pageuppeople.com/968/cw/en-us...
careers.pageuppeople.com/968/cw/en-us...
Details | Open Rank Faculty, Quantum Systems | Careers | Division of Human Resources | Virginia Tech
careers.pageuppeople.com
November 26, 2024 at 7:30 PM
We're hiring quantum theory faculty at Virginia Tech. This is an open-rank position in the CS or EE department at the new Center in Alexandria, VA, just outside of Washington, DC. This is the first of several new hires at the Center. Come join us (pls RT)!
careers.pageuppeople.com/968/cw/en-us...
careers.pageuppeople.com/968/cw/en-us...