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Matt McEwen

@matt.mcewen.xyz
305 followers 106 following 19 posts

Research Scientist with Google Quantum AI

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Reposted by Matt McEwen
Dripto Debroy @dripto.bsky.social · 06/05/2026
The QEC room block closes on Friday, May 8th, and is filling quickly. I recommend registering for the conference if you haven't already, and then booking ASAP. Room block info at: qec-conference.org/2026/travel/
qec-conference.org
Travel and Accomodations
Travel Details The best way to get to Santa Barbara is to fly to Santa Barbara Municipal Airport (SBA), which is 7 miles from downtown Santa Barbara where the conference will be hosted. This airport i...
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Reposted by Matt McEwen
Dripto Debroy @dripto.bsky.social · 24/04/2026
Had some website troubles, so we're extending the early-bird deadline for QEC from tonight to Monday, April 27th. See qec-conference.org/2026/registr... for details. Sorry for the inconvenience.
qec-conference.org
Registration
Click here to register on EasyChair The registration fees are as follows: Fees Early Bird Regular Onsite Student Registration $600 $800 $1000 General Registration $700 $900 $1100 Early-bird registrati...
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Matt McEwen @matt.mcewen.xyz · 23/04/2026
The schedule for talks at QEC26 is now up on our website: qec-conference.org/2026/schedule The earlybird registration deadline is tomorrow, so sign up now! Looking forward to seeing you all in Santa Barbara
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Matt McEwen @matt.mcewen.xyz · 15/04/2026
Talks for QEC26 will be announced this Friday 17th April! We’re also extending early-bird registration until April 24th at qec-conference.org/2026/registr....
qec-conference.org
Registration
Click here to register on EasyChair The registration fees are as follows: Fees Early Bird Regular Onsite Student Registration $600 $800 $1000 General Registration $700 $900 $1100 Early-bird registrati...
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Reposted by Matt McEwen
Dulwich Quantum Computing @dulwichquantum.bsky.social · 24/03/2026
Google going both for superconducting qubits as well as neutral atoms
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Reposted by Matt McEwen
Dripto Debroy @dripto.bsky.social · 27/02/2026
Registration is now open for QEC26, to be held this June in sunny Santa Barbara, CA! See the registration page at qec-conference.org for a link. Also, the deadline for submissions is next Friday. Make sure to get those in and spread the word to friends and collaborators!
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Matt McEwen @matt.mcewen.xyz · 02/02/2026
The Call for Submissions for QEC26 is now up: qec-conference.org/2026/call/ Follow the link to submit your paper or poster by March 6th AOE.
qec-conference.org
Call for Submissions
Submissions to QEC26 are done through EasyChair. Click here to make a submission on EasyChair Submissions for talks and posters are open until the end of Friday, March 6th AOE.
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Matt McEwen @matt.mcewen.xyz · 23/01/2026
The website for QEC26 is up at qec-conference.org, and the submission deadline for talks and papers is Friday March 6th AOE. The submission link should be up soon!
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Reposted by Matt McEwen
Earl Campbell @quantumearl.bsky.social · 15/10/2025
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
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John Preskill @preskill.bsky.social · 07/10/2025
The pioneering work of Clarke, Devoret, and Martinis showed that very cold electrical circuits behave in ways that exhibit fundamental principles of quantum physics. www.nobelprize.org/prizes/physi...
nobelprize.org
Nobel Prize in Physics 2025
The Nobel Prize in Physics 2025 was awarded jointly to John Clarke, Michel H. Devoret and John M. Martinis "for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an...
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Craig Gidney @craiggidney.bsky.social · 02/10/2025
For their student researcher-ship, Satoshi Yoshida extended our work on dynamic surface code circuits to color codes. They built and simulated iswap color code circuits and wiggling color code circuits. The iswap circuits use fewer entangling layers than CX circuits! arxiv.org/abs/2510.00370
arxiv.org
Low Depth Color Code Circuits with CXSWAP gate
We present two new types of syndrome extraction circuits for the color code. Our first construction, which after [M. McEwen, D. Bacon, and C. Gidney, Quantum 7, 1172 (2023)] we call the semi-wiggling ...
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Reposted by Matt McEwen
Dave Bacon @dabacon.tachyon.institute · 02/10/2025
blog.google/technology/r... E
blog.google
We’re scaling quantum computing even faster with Atlantic Quantum.
Google Quantum AI was founded in 2012 and our mission today remains the same — build quantum computers that can solve otherwise unsolvable problems. We’re making steady …
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Reposted by Matt McEwen
Stephen Bartlett @bartlettquantum.bsky.social · 12/08/2025
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
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Matt McEwen @matt.mcewen.xyz · 12/08/2025
Check out our new work on how to make the surface code on a hexagonal grid robust to dead components: www.arxiv.org/abs/2508.08116 It turns out adding weight-1 checks to LUCI gives you a lot of new freedom!
arxiv.org
Handling fabrication defects in hex-grid surface codes
Recent work has shown that a hexagonal grid qubit layout, with only three couplers per qubit, is sufficient to implement the surface code with performance comparable to that of a traditional four-coup...
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Matt McEwen @matt.mcewen.xyz · 08/05/2025
My fav new features are the glorious I_ERROR, II, and II_ERROR instructions. While on their face they seem nuts, they're really helpful for representing operations that stim can't simulate, but can still know are noisy or have 2Q targets. I_ERROR[LEAKAGE](p) anyone?
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Reposted by Matt McEwen
Steve Flammia @sflammia.bsky.social · 11/01/2025
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...
qec25.yalepages.org
QEC25
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Matt McEwen @matt.mcewen.xyz · 20/12/2024
Circuits Galore! Check out our latest work demonstrating three new circuits for implementing the surface code: arxiv.org/abs/2412.14360 They all perform well below threshold on a device optimised for the standard surface code, but they each open up wild new possibilities for devices.
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juliankelly.bsky.social @juliankelly.bsky.social · 09/12/2024
🌳 Excited to introduce Willow, Google Quantum AI’s latest chip. Willow 5x’s coherence times, beats the Surface Code QEC threshold, and the time to reproduce Willow's RCS on Frontier supercomputer is estimated at 10^25 years⏳! 👇 thread #Quantum #Physics #Science blog.google/technology/r...
blog.google
Meet Willow, our state-of-the-art quantum chip
Our new quantum chip demonstrates error correction and performance that paves the way to a useful, large-scale quantum computer.
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