Michael Vasmer
@vasmer.bsky.social
Quantum error correction @ Inria Paris (COSMIQ team)
https://mikevasmer.github.io/
https://mikevasmer.github.io/
📣 Online QASAR seminar this Wednesday
🗣️ David Aasen (Microsoft)
📜 A Topologically Fault-Tolerant Quantum Computer with Four Dimensional Geometric Codes
⏰ Weds 5 November 5pm (Paris)
Mailing list
sympa.inria.fr/sympa/subscr...
🗣️ David Aasen (Microsoft)
📜 A Topologically Fault-Tolerant Quantum Computer with Four Dimensional Geometric Codes
⏰ Weds 5 November 5pm (Paris)
Mailing list
sympa.inria.fr/sympa/subscr...
qasar.seminar - Qasar Seminar - subscribe
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sympa.inria.fr
November 3, 2025 at 11:30 AM
📣 Online QASAR seminar this Wednesday
🗣️ David Aasen (Microsoft)
📜 A Topologically Fault-Tolerant Quantum Computer with Four Dimensional Geometric Codes
⏰ Weds 5 November 5pm (Paris)
Mailing list
sympa.inria.fr/sympa/subscr...
🗣️ David Aasen (Microsoft)
📜 A Topologically Fault-Tolerant Quantum Computer with Four Dimensional Geometric Codes
⏰ Weds 5 November 5pm (Paris)
Mailing list
sympa.inria.fr/sympa/subscr...
📣 Online QASAR seminar next week
🗣️ Guanyu Zhu (IBM)
📜 Topology for qLDPC: Transversal non-Clifford gates and magic state fountain on homological product codes
⏰ Weds 22 October 5pm (Paris)
Mailing list
sympa.inria.fr/sympa/subscr...
🗣️ Guanyu Zhu (IBM)
📜 Topology for qLDPC: Transversal non-Clifford gates and magic state fountain on homological product codes
⏰ Weds 22 October 5pm (Paris)
Mailing list
sympa.inria.fr/sympa/subscr...
qasar.seminar - Qasar Seminar - subscribe
You've made a subscription request to qasar.seminar. To confirm your request, please click the button below:
sympa.inria.fr
October 17, 2025 at 3:11 PM
📣 Online QASAR seminar next week
🗣️ Guanyu Zhu (IBM)
📜 Topology for qLDPC: Transversal non-Clifford gates and magic state fountain on homological product codes
⏰ Weds 22 October 5pm (Paris)
Mailing list
sympa.inria.fr/sympa/subscr...
🗣️ Guanyu Zhu (IBM)
📜 Topology for qLDPC: Transversal non-Clifford gates and magic state fountain on homological product codes
⏰ Weds 22 October 5pm (Paris)
Mailing list
sympa.inria.fr/sympa/subscr...
Reposted by Michael Vasmer
Coming out of social media hibernation to ask:
Are you interested in hosting a future QEC conf?
We are looking for detailed bids for QEC27 over the next month (provisional deadline 21st November). For more info: DM or email me.
QEC26 will be in Santa Barbara
Are you interested in hosting a future QEC conf?
We are looking for detailed bids for QEC27 over the next month (provisional deadline 21st November). For more info: DM or email me.
QEC26 will be in Santa Barbara
October 15, 2025 at 7:44 AM
Coming out of social media hibernation to ask:
Are you interested in hosting a future QEC conf?
We are looking for detailed bids for QEC27 over the next month (provisional deadline 21st November). For more info: DM or email me.
QEC26 will be in Santa Barbara
Are you interested in hosting a future QEC conf?
We are looking for detailed bids for QEC27 over the next month (provisional deadline 21st November). For more info: DM or email me.
QEC26 will be in Santa Barbara
Reposted by Michael Vasmer
happy to share this preprint from last week scirate.com/arxiv/2510.0... - my first with Iceberg!
big thanks to Larry and Nouedyn, who led this cool project ❄️
we have also written a short blogpost about it www.iceberg-quantum.com/blog/fast-su...
comments welcome 🧊
big thanks to Larry and Nouedyn, who led this cool project ❄️
we have also written a short blogpost about it www.iceberg-quantum.com/blog/fast-su...
comments welcome 🧊
Fast surgery for quantum LDPC codes
Quantum LDPC codes promise significant reductions in physical qubit overhead compared with topological codes. However, many existing constructions for performing logical operations come with distance-...
scirate.com
October 13, 2025 at 7:36 AM
happy to share this preprint from last week scirate.com/arxiv/2510.0... - my first with Iceberg!
big thanks to Larry and Nouedyn, who led this cool project ❄️
we have also written a short blogpost about it www.iceberg-quantum.com/blog/fast-su...
comments welcome 🧊
big thanks to Larry and Nouedyn, who led this cool project ❄️
we have also written a short blogpost about it www.iceberg-quantum.com/blog/fast-su...
comments welcome 🧊
Reposted by Michael Vasmer
Really excited about our new paper on quantum belief propagation (aka "belief propagation with quantum messages")!
arxiv.org/abs/2509.19441
Our new quantum algorithm solves a structured state discrimination problem which is central for quantum algorithm based on Regev's reduction (like DQI).
1/3
arxiv.org/abs/2509.19441
Our new quantum algorithm solves a structured state discrimination problem which is central for quantum algorithm based on Regev's reduction (like DQI).
1/3
Efficient and optimal quantum state discrimination via quantum belief propagation
We present an efficient quantum algorithm for a structured state discrimination problem we call the subspace decoding task. Building on this, we show that the algorithm enables efficient and optimal d...
arxiv.org
September 25, 2025 at 8:04 AM
Really excited about our new paper on quantum belief propagation (aka "belief propagation with quantum messages")!
arxiv.org/abs/2509.19441
Our new quantum algorithm solves a structured state discrimination problem which is central for quantum algorithm based on Regev's reduction (like DQI).
1/3
arxiv.org/abs/2509.19441
Our new quantum algorithm solves a structured state discrimination problem which is central for quantum algorithm based on Regev's reduction (like DQI).
1/3
Reposted by Michael Vasmer
Can ChatGPT help with research? Maybe not yet for finding new results, but it can certainly speed up some tedious tasks.
An example about quantum Tanner codes #qLDPC
Working with qudits (d=5) lets you use nice local codes [4,2,3]_5. Then the idea is simply to enumerate small groups and (1/4)
An example about quantum Tanner codes #qLDPC
Working with qudits (d=5) lets you use nice local codes [4,2,3]_5. Then the idea is simply to enumerate small groups and (1/4)
September 18, 2025 at 2:40 PM
Can ChatGPT help with research? Maybe not yet for finding new results, but it can certainly speed up some tedious tasks.
An example about quantum Tanner codes #qLDPC
Working with qudits (d=5) lets you use nice local codes [4,2,3]_5. Then the idea is simply to enumerate small groups and (1/4)
An example about quantum Tanner codes #qLDPC
Working with qudits (d=5) lets you use nice local codes [4,2,3]_5. Then the idea is simply to enumerate small groups and (1/4)
Reposted by Michael Vasmer
New paper out ✨
Fault-tolerant Transformation of Spacetime Codes, a collaboration w/ @vasmer.bsky.social, Austin Daniel & Ilan Tzitrin, which started during my internship @xanaduai.bsky.social
scirate.com/arxiv/2509.0...
Let's now see if I can summarize 101 pages (🙈) in a few tweets (and memes!)
Fault-tolerant Transformation of Spacetime Codes, a collaboration w/ @vasmer.bsky.social, Austin Daniel & Ilan Tzitrin, which started during my internship @xanaduai.bsky.social
scirate.com/arxiv/2509.0...
Let's now see if I can summarize 101 pages (🙈) in a few tweets (and memes!)
September 13, 2025 at 11:05 AM
New paper out ✨
Fault-tolerant Transformation of Spacetime Codes, a collaboration w/ @vasmer.bsky.social, Austin Daniel & Ilan Tzitrin, which started during my internship @xanaduai.bsky.social
scirate.com/arxiv/2509.0...
Let's now see if I can summarize 101 pages (🙈) in a few tweets (and memes!)
Fault-tolerant Transformation of Spacetime Codes, a collaboration w/ @vasmer.bsky.social, Austin Daniel & Ilan Tzitrin, which started during my internship @xanaduai.bsky.social
scirate.com/arxiv/2509.0...
Let's now see if I can summarize 101 pages (🙈) in a few tweets (and memes!)
I've had a great time at the Stable Phases program at the Kavli Institute for Theoretical Physics! I'm looking forward to being back in Paris but I will miss the SoCal weather ☀️
September 5, 2025 at 12:00 AM
I've had a great time at the Stable Phases program at the Kavli Institute for Theoretical Physics! I'm looking forward to being back in Paris but I will miss the SoCal weather ☀️
Reposted by Michael Vasmer
Looking for a postdoc to work on bosonic quantum error correction!
Join me and the QAT team at ENS & INRIA Paris — flexible start date.
Details here 👉 recrutement.inria.fr/public/class... or feel free to reach out!
Join me and the QAT team at ENS & INRIA Paris — flexible start date.
Details here 👉 recrutement.inria.fr/public/class... or feel free to reach out!
Post-Doctoral Research Visit F/M Senior postdoctoral researcher in bosonic quantum error correction
Offre d'emploi Inria
recrutement.inria.fr
August 26, 2025 at 1:14 PM
Looking for a postdoc to work on bosonic quantum error correction!
Join me and the QAT team at ENS & INRIA Paris — flexible start date.
Details here 👉 recrutement.inria.fr/public/class... or feel free to reach out!
Join me and the QAT team at ENS & INRIA Paris — flexible start date.
Details here 👉 recrutement.inria.fr/public/class... or feel free to reach out!
Reposted by Michael Vasmer
The QEC25 conference hosted by @yaleqi.bsky.social was really excellent, and videos of all talks are available. So much recent progress on quantum error correction!
qec25.yalepages.org
qec25.yalepages.org
QEC25
qec25.yalepages.org
August 17, 2025 at 5:32 PM
The QEC25 conference hosted by @yaleqi.bsky.social was really excellent, and videos of all talks are available. So much recent progress on quantum error correction!
qec25.yalepages.org
qec25.yalepages.org
Reposted by Michael Vasmer
Since search is dead, how soon do you think Google Scholar is headed for the Google Graveyard? I'm betting it's soon, and academia is NOT prepared
Google Scholar Is Doomed
Academia built entire careers on a free Google service with zero guarantees. What could go wrong?
hannahshelley.neocities.org
August 13, 2025 at 1:28 AM
Since search is dead, how soon do you think Google Scholar is headed for the Google Graveyard? I'm betting it's soon, and academia is NOT prepared
Reposted by Michael Vasmer
Very exciting announcement, the next Quantum Error Correction conference QEC26 will be hosted by Google 7-12 June 2026 in Santa Barbara. See you there! @dripto.bsky.social @mattmcewen.bsky.social
August 12, 2025 at 9:54 PM
Very exciting announcement, the next Quantum Error Correction conference QEC26 will be hosted by Google 7-12 June 2026 in Santa Barbara. See you there! @dripto.bsky.social @mattmcewen.bsky.social
I am attending the QEC conference at Yale this week. Looking forward to seeing some interesting talks, catching up with old friends, and eating som New Haven pizza!
August 11, 2025 at 11:25 AM
I am attending the QEC conference at Yale this week. Looking forward to seeing some interesting talks, catching up with old friends, and eating som New Haven pizza!
Reposted by Michael Vasmer
#Quantum #QIP2025
The team @qip2025.bsky.social has uploaded the QIPv2025 talks
www.youtube.com/@QIP2025
Enjoy rewatching your favorites!
The team @qip2025.bsky.social has uploaded the QIPv2025 talks
www.youtube.com/@QIP2025
Enjoy rewatching your favorites!
QIP2025
www.youtube.com
July 27, 2025 at 11:02 PM
#Quantum #QIP2025
The team @qip2025.bsky.social has uploaded the QIPv2025 talks
www.youtube.com/@QIP2025
Enjoy rewatching your favorites!
The team @qip2025.bsky.social has uploaded the QIPv2025 talks
www.youtube.com/@QIP2025
Enjoy rewatching your favorites!
Reposted by Michael Vasmer
After 3 1/2 years of work my course on quantum computing is finally finished — the "Director's Cut" of Understanding Quantum Information and Computation is now available.
arxiv.org/abs/2507.11536
arxiv.org/abs/2507.11536
Understanding Quantum Information and Computation
This is a course on the theory of quantum computing. It consists of 16 lessons, each with a video and written component, covering the basics of quantum information, quantum algorithms (including query...
arxiv.org
July 16, 2025 at 11:06 AM
After 3 1/2 years of work my course on quantum computing is finally finished — the "Director's Cut" of Understanding Quantum Information and Computation is now available.
arxiv.org/abs/2507.11536
arxiv.org/abs/2507.11536
Reposted by Michael Vasmer
On July 17-18 a small symposium "Dreams of Quantum" will be held in honor of David DiVincenzo's work and retirement at RWTH Aachen. The event can be attended via Zoom by all. Information about the program of speakers & the Zoom link can be found at www.quantuminfo.physik.rwth-aachen.de/cms/~bmmwed
July 2, 2025 at 10:22 AM
On July 17-18 a small symposium "Dreams of Quantum" will be held in honor of David DiVincenzo's work and retirement at RWTH Aachen. The event can be attended via Zoom by all. Information about the program of speakers & the Zoom link can be found at www.quantuminfo.physik.rwth-aachen.de/cms/~bmmwed
Paul Hilaire and I are recruiting a PhD student to work on demonstrations of fault-tolerant protocols for near-term quantum hardware (photonics & cold atoms). The focus is on quantum error correction, low-overhead schemes, and actual implementation on hardware
June 27, 2025 at 4:38 PM
Paul Hilaire and I are recruiting a PhD student to work on demonstrations of fault-tolerant protocols for near-term quantum hardware (photonics & cold atoms). The focus is on quantum error correction, low-overhead schemes, and actual implementation on hardware
One of the amazing things about working in quantum information science is being able to meet and talk to the pioneers of the subject. I was very lucky not only to have met Ray, but also to have been a postdoc in his group for a number of years.
Raymond Laflamme 1960-2025. A great scientist, renowned for his pioneering contributions to quantum error correction. A great leader, founding director of the Institute for Quantum Computing. A great colleague and teacher whose legacy continues to inspire us.
uwaterloo.ca/institute-fo...
uwaterloo.ca/institute-fo...
IQC and Waterloo mourn the loss of Raymond Laflamme | Institute for Quantum Computing | University of Waterloo
Raymond Laflamme, a trailblazer in quantum information processing and pioneer of the Institute for Quantum Computing (IQC) at the University of Waterloo, died on June 19 after a lengthy battle with ca...
uwaterloo.ca
June 22, 2025 at 5:30 PM
One of the amazing things about working in quantum information science is being able to meet and talk to the pioneers of the subject. I was very lucky not only to have met Ray, but also to have been a postdoc in his group for a number of years.
Reposted by Michael Vasmer
#newpaper Bosonic codes have a huge potential to reduce the cost of quantum fault tolerance, and many codes look like serious contenders: dual-rail qubit, cat qubit, GKP.
But the Fock space is huge, esp. if you consider multimode encodings, and there are many great codes waiting to be found (1/4)
But the Fock space is huge, esp. if you consider multimode encodings, and there are many great codes waiting to be found (1/4)
May 23, 2025 at 11:05 AM
#newpaper Bosonic codes have a huge potential to reduce the cost of quantum fault tolerance, and many codes look like serious contenders: dual-rail qubit, cat qubit, GKP.
But the Fock space is huge, esp. if you consider multimode encodings, and there are many great codes waiting to be found (1/4)
But the Fock space is huge, esp. if you consider multimode encodings, and there are many great codes waiting to be found (1/4)
Technical question: does anyone know of formal results on the hypergraph (or tensor) product of two CSS codes? I am especially interested in lower bounds on the distance of the product code.
May 19, 2025 at 12:42 PM
Technical question: does anyone know of formal results on the hypergraph (or tensor) product of two CSS codes? I am especially interested in lower bounds on the distance of the product code.
Reposted by Michael Vasmer
I have a new paper out: "Quantum Circuit Lower Bounds in the Magic Hierarchy".🔮🪜
arxiv.org/abs/2504.19966
a thread:
arxiv.org/abs/2504.19966
a thread:
April 29, 2025 at 10:47 PM
I have a new paper out: "Quantum Circuit Lower Bounds in the Magic Hierarchy".🔮🪜
arxiv.org/abs/2504.19966
a thread:
arxiv.org/abs/2504.19966
a thread:
Reposted by Michael Vasmer
Happy World Quantum Day! I'm excited to announce that I will be starting a new group dedicated to quantum error correction (QEC) at The University of Edinburgh Quantum Software Lab, funded by an EPSRC Quantum Technology Career Acceleration Fellowship!
April 14, 2025 at 3:25 PM
Happy World Quantum Day! I'm excited to announce that I will be starting a new group dedicated to quantum error correction (QEC) at The University of Edinburgh Quantum Software Lab, funded by an EPSRC Quantum Technology Career Acceleration Fellowship!
Congratulations Christophe, I am very excited to work with you in the near future!
Finally, I'm super excited to announce that I will soon start a postdoc at Inria Paris in the COMSIQ group, funded by a SNF Postdoc.Mobility grant!
@snf-fns-ch.bsky.social
(4/4)
@snf-fns-ch.bsky.social
(4/4)
March 28, 2025 at 2:22 PM
Congratulations Christophe, I am very excited to work with you in the near future!
Reposted by Michael Vasmer
Hey all! Just uploaded my PhD thesis on the arXiv, which I recently defended in January. Feel free to check it out! 🤗
arxiv.org/abs/2503.21773
It's about quasiprobabilistic algorithms to simulate quantum circuits - not just on classical computers, but also on restricted quantum computers.
(1/4)
arxiv.org/abs/2503.21773
It's about quasiprobabilistic algorithms to simulate quantum circuits - not just on classical computers, but also on restricted quantum computers.
(1/4)
Simulating quantum circuits with restricted quantum computers
It is one of the most fundamental objectives in quantum information science to understand the boundary between the computational power of classical and quantum computers. One possible avenue to explor...
arxiv.org
March 28, 2025 at 9:32 AM
Hey all! Just uploaded my PhD thesis on the arXiv, which I recently defended in January. Feel free to check it out! 🤗
arxiv.org/abs/2503.21773
It's about quasiprobabilistic algorithms to simulate quantum circuits - not just on classical computers, but also on restricted quantum computers.
(1/4)
arxiv.org/abs/2503.21773
It's about quasiprobabilistic algorithms to simulate quantum circuits - not just on classical computers, but also on restricted quantum computers.
(1/4)
Reposted by Michael Vasmer
I wonder if the early pioneers of classical fault-tolerance ever imagined where the field might go ieeexplore.ieee.org/document/677...
Reliable information storage in memories designed from unreliable components
This is the first of two papers which consider the theoretical capabilities of computing systems designed from unreliable components. This paper discusses the capabilities of memories; the second pape...
ieeexplore.ieee.org
March 17, 2025 at 5:32 PM
I wonder if the early pioneers of classical fault-tolerance ever imagined where the field might go ieeexplore.ieee.org/document/677...