Emmanuel Flurin
@manuflurin.bsky.social
Quantum physicist / quantum sensing with superconducting circuits @CEA Saclay / Scientific advisor @Alice&Bob .
What it really feels like interacting with your physics heroes!
Such a beautiful and fundamental prize 🤩
www.nobelprize.org/prizes/physi...
Such a beautiful and fundamental prize 🤩
www.nobelprize.org/prizes/physi...
a close up of a statue of yoda with the words `` learning you are '' written above him .
ALT: a close up of a statue of yoda with the words `` learning you are '' written above him .
media.tenor.com
October 7, 2025 at 10:56 PM
What it really feels like interacting with your physics heroes!
Such a beautiful and fundamental prize 🤩
www.nobelprize.org/prizes/physi...
Such a beautiful and fundamental prize 🤩
www.nobelprize.org/prizes/physi...
Reposted by Emmanuel Flurin
Every time I interact with Michel, he has some deep insight that I understand only years later. Maybe it is not completely fleshed out technically but it is always on point. It reminded me of other winners in the past. Well deserved!
Nobel in Physics to Clarke, Devoret and Martinis! Congratulations to them!
Citation says for work in the 1980s on quantized current.
Citation says for work in the 1980s on quantized current.
October 7, 2025 at 12:14 PM
Every time I interact with Michel, he has some deep insight that I understand only years later. Maybe it is not completely fleshed out technically but it is always on point. It reminded me of other winners in the past. Well deserved!
Reposted by Emmanuel Flurin
Outstanding choices!
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 10:06 AM
Outstanding choices!
Reposted by Emmanuel Flurin
Putting my thoughts together. Why networks beat "hero" sensors and what birds can teach us.
quantum-noise.ghost.io/quantum-sens...
quantum-noise.ghost.io/quantum-sens...
Quantum Sensing Like a Bird
A few nights ago I was on a panel on Quantum Sensing for Defense. Preparing for this panel crystallized some ideas for me, which I think I should write down somewhere. So here it is!
When we talk abo...
quantum-noise.ghost.io
September 28, 2025 at 7:23 PM
Putting my thoughts together. Why networks beat "hero" sensors and what birds can teach us.
quantum-noise.ghost.io/quantum-sens...
quantum-noise.ghost.io/quantum-sens...
Reposted by Emmanuel Flurin
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 Emmanuel Flurin
What is common knowledge in your field but shocks outsiders?
n qubits can reliably store only n bits.
n qubits can reliably store only n bits.
What is common knowledge in your field but shocks outsiders?
It's been over a hundred years since we first realized that quantum mechanics is a thing, but we still don't actually understand what it *means* about the nature of our universe.
(Though we can predict the output of experiments fine.)
It's been over a hundred years since we first realized that quantum mechanics is a thing, but we still don't actually understand what it *means* about the nature of our universe.
(Though we can predict the output of experiments fine.)
What is common knowledge in your field but shocks outsiders?
The President of the United States of America uas unilateral authority to fire off nuclear weapons with no legal oversight from anyone.
The President of the United States of America uas unilateral authority to fire off nuclear weapons with no legal oversight from anyone.
June 18, 2025 at 6:26 AM
What is common knowledge in your field but shocks outsiders?
n qubits can reliably store only n bits.
n qubits can reliably store only n bits.
New paper out! We resonantly couple a superconducting heavy-fluxonium qubit ⚛️ to a macroscopic membrane 🥁 oscillating at a few MHz. ~300 repeated interactions let us track its quantum motion, observe back-action & probe non-commuting operators. Diósi–Penrose next? (1/8)
arxiv.org/abs/2505.21481
arxiv.org/abs/2505.21481
Probing the quantum motion of a macroscopic mechanical oscillator with a radio-frequency superconducting qubit
Long-lived mechanical resonators like drums oscillating at MHz frequencies and operating in the quantum regime offer a powerful platform for quantum technologies and tests of fundamental physics. Yet,...
arxiv.org
May 28, 2025 at 5:25 PM
New paper out! We resonantly couple a superconducting heavy-fluxonium qubit ⚛️ to a macroscopic membrane 🥁 oscillating at a few MHz. ~300 repeated interactions let us track its quantum motion, observe back-action & probe non-commuting operators. Diósi–Penrose next? (1/8)
arxiv.org/abs/2505.21481
arxiv.org/abs/2505.21481
Reposted by Emmanuel Flurin
I'm often asked if I'll redo the 2019 quantum factoring estimate. Denser storage by yokes, smaller magic factories by cultivation, slimmer approx arithmetic by Chevignard et al… surely the cost is lower now?
Yes, it's lower now.
security.googleblog.com/2025/05/trac...
arxiv.org/abs/2505.15917
Yes, it's lower now.
security.googleblog.com/2025/05/trac...
arxiv.org/abs/2505.15917
May 23, 2025 at 1:25 PM
I'm often asked if I'll redo the 2019 quantum factoring estimate. Denser storage by yokes, smaller magic factories by cultivation, slimmer approx arithmetic by Chevignard et al… surely the cost is lower now?
Yes, it's lower now.
security.googleblog.com/2025/05/trac...
arxiv.org/abs/2505.15917
Yes, it's lower now.
security.googleblog.com/2025/05/trac...
arxiv.org/abs/2505.15917
Reposted by Emmanuel Flurin
Reposted by Emmanuel Flurin
Open position: we have an excited opening for a 3-year contract (including a very nice welcome package to start building a small team) in our group at Inria Paris. If you want to work on quantum LDPC codes and fault tolerance, please consider applying. (1/2)
May 6, 2025 at 11:11 AM
Open position: we have an excited opening for a 3-year contract (including a very nice welcome package to start building a small team) in our group at Inria Paris. If you want to work on quantum LDPC codes and fault tolerance, please consider applying. (1/2)
Reposted by Emmanuel Flurin
I’m super excited to see the experimental realization of a variant of the dissipatively stabilized squeezed cat that we proposed! Congrats to Alice & Bob and everyone else involved
Especially great to see that it comes with similar performance gains as promised by the theory
arxiv.org/abs/2502.07892
Especially great to see that it comes with similar performance gains as promised by the theory
arxiv.org/abs/2502.07892
Enhancing dissipative cat qubit protection by squeezing
Dissipative cat-qubits are a promising architecture for quantum processors due to their built-in quantum error correction. By leveraging two-photon stabilization, they achieve an exponentially suppres...
arxiv.org
February 13, 2025 at 8:19 AM
I’m super excited to see the experimental realization of a variant of the dissipatively stabilized squeezed cat that we proposed! Congrats to Alice & Bob and everyone else involved
Especially great to see that it comes with similar performance gains as promised by the theory
arxiv.org/abs/2502.07892
Especially great to see that it comes with similar performance gains as promised by the theory
arxiv.org/abs/2502.07892
Reposted by Emmanuel Flurin
Reading papers is the new smoking
January 18, 2025 at 11:21 AM
Reading papers is the new smoking
Reposted by Emmanuel Flurin
I told Craig it was crazy how fast it was from idea to implementation, and he said it should be like like a day from idea to experiment. Old dude me, I remember when your quantum computing idea might take decades to go from your idea to maybe some sort of kinda-but-just-barely experiment.
December 20, 2024 at 4:58 AM
I told Craig it was crazy how fast it was from idea to implementation, and he said it should be like like a day from idea to experiment. Old dude me, I remember when your quantum computing idea might take decades to go from your idea to maybe some sort of kinda-but-just-barely experiment.
Reposted by Emmanuel Flurin
Over the past year I played a supporting role on experiments showing we have a flexibility in how we do QEC on a planar chip. We do a color code (arxiv.org/abs/2412.14256), and three interesting variations of the surface code circuit (arxiv.org/abs/2412.14360), all below threshold.
December 20, 2024 at 4:10 AM
Over the past year I played a supporting role on experiments showing we have a flexibility in how we do QEC on a planar chip. We do a color code (arxiv.org/abs/2412.14256), and three interesting variations of the surface code circuit (arxiv.org/abs/2412.14360), all below threshold.
Reposted by Emmanuel Flurin
We just put on arXiv a long haul work on "bending" the time-dynamic of the surface code. We demonstrate error suppression from distance 3 to 5 for three different implementations on Willow. The three offer uniques venues for designing new hardware for error corrections.
arxiv.org/abs/2412.14360
arxiv.org/abs/2412.14360
December 20, 2024 at 8:58 AM
We just put on arXiv a long haul work on "bending" the time-dynamic of the surface code. We demonstrate error suppression from distance 3 to 5 for three different implementations on Willow. The three offer uniques venues for designing new hardware for error corrections.
arxiv.org/abs/2412.14360
arxiv.org/abs/2412.14360