Alexis Morvan
@amorvan.bsky.social
Quantum Research Scientist at Google Quantum AI
We taught a quantum computer to learn from its own mistakes-- without stopping.
Our RL framework repurposes QEC detection events as learning signals to stabilize the system.
Result: Improved Logical Error Rates for both Surface and Color codes on Willow!
see arxiv: arxiv.org/abs/2511.08493
Our RL framework repurposes QEC detection events as learning signals to stabilize the system.
Result: Improved Logical Error Rates for both Surface and Color codes on Willow!
see arxiv: arxiv.org/abs/2511.08493
November 12, 2025 at 4:44 AM
We taught a quantum computer to learn from its own mistakes-- without stopping.
Our RL framework repurposes QEC detection events as learning signals to stabilize the system.
Result: Improved Logical Error Rates for both Surface and Color codes on Willow!
see arxiv: arxiv.org/abs/2511.08493
Our RL framework repurposes QEC detection events as learning signals to stabilize the system.
Result: Improved Logical Error Rates for both Surface and Color codes on Willow!
see arxiv: arxiv.org/abs/2511.08493
This weekend I tried another home experiment for my toddler. This one was suggested to me by none other than Michel Devoret!
It’s pretty cool. But I was more excited than the kid 😅
It’s pretty cool. But I was more excited than the kid 😅
November 3, 2025 at 1:32 AM
This weekend I tried another home experiment for my toddler. This one was suggested to me by none other than Michel Devoret!
It’s pretty cool. But I was more excited than the kid 😅
It’s pretty cool. But I was more excited than the kid 😅
With my son, we played with vegetal oil, baking powder and vinegar colored in blue. The effect was really cool!
September 28, 2025 at 10:08 PM
With my son, we played with vegetal oil, baking powder and vinegar colored in blue. The effect was really cool!
My guess as to why the 3-coupler wasn't discovered before is that it shifts around the flavor of the stabilizers.
If you look at the stabilizer at the end of the cycles, for a given measurement qubit in the bulk, the color changes every other round. The 'ear' of the surface code patch shifts a bit.
If you look at the stabilizer at the end of the cycles, for a given measurement qubit in the bulk, the color changes every other round. The 'ear' of the surface code patch shifts a bit.
April 25, 2025 at 5:03 AM
My guess as to why the 3-coupler wasn't discovered before is that it shifts around the flavor of the stabilizers.
If you look at the stabilizer at the end of the cycles, for a given measurement qubit in the bulk, the color changes every other round. The 'ear' of the surface code patch shifts a bit.
If you look at the stabilizer at the end of the cycles, for a given measurement qubit in the bulk, the color changes every other round. The 'ear' of the surface code patch shifts a bit.
Happy christmas to everyone!
December 24, 2024 at 2:39 PM
Happy christmas to everyone!
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