Interesting new QEC paper today
arxiv.org/abs/2404.17676
Implementations of bivariant bicycle codes (which are nice qLDPC codes) with local coupling on a bilayer architecture.

There are some catches, as one might expect from a fully local implementation, but great progress!

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It's the day after world quantum day, and so the quantum grinch reappears. But at least he sings a pleasant tune
quantum-disadvantage.co.uk

There's an exhibition in Basel with art about and using quantum computing.

It certainly doesn't present an unconditional endorsement of the growing QC industry, and made me unsettled in all the ways we probably should be. So I'd recommend that anyone in the area checks it out!

The recording of Oded's talk on his factoring algorithm, as well as the panel afterwards with Peter Shor and Vinod Vaikuntanathan and myself, is now available on youtube: youtube.com/watch?v=Uzn93G…

I get the sense that most quantum software startups are focussed on a NISQ advantage. Who is out there betting on fault-tolerance?

Yesterday there was a wood here. I'm not sure how cutting all the trees down helps to protect nature #LangeErlen

Today in QEC on the arXiv
arxiv.org/abs/2403.04163
A deep dive into the details of dynamical codes. Such as figuring out what their distance is (which I know from experience can be tricky). They also show that they obey previous no-go theorems, meaning no non-Cliffords in 2D.

Really nice rebuttal of algorithmic qubits by Charlie Baldwin quantinuum.com/news/debunking…

It's been great to see this educational game grow over the years. If you have a Steam account, go and wishlist it now!

Cosmic ray detection is one of my favorite features of some current quantum hardware. But it's great to see that Matt's figured out how to turn that feature off!

Today in QEC on the arXiv
arxiv.org/abs/2402.14396
With fault-tolerant quantum computers we'll have easy access to Clifford gates. Non-Cliffords, like T gates, will take more effort. Here they present an AI powered new way to minimize the number of T gates needed for a circuit

There is just one week left to register for our (free) open course on spin-based quantum computation.

Over 80 sign-ups already!

Register here: forms.gle/j59ygp5kvjysKk…

More info here: zumbuhllab.unibas.ch/en/teaching/hs…

#spinqubits

Today in QEC on the arXiv
arxiv.org/abs/2402.13863
A proof of how to realize fault-tolerance with only local operations (in 3D or almost 2D), comparison with Pattinson et al's 2D result from last year, as well as many other interesting details that will take a while to digest.

Today in QEC on the arXiv: a couple of interesting looking papers by the same authors
arxiv.org/abs/2402.11027
arxiv.org/abs/2402.11105
I've not had time to look properly at them, but I thought I'd post the links anyway

Today in QEC on the arXiv
arxiv.org/abs/2402.04834
A new decoder for the surface code, combining some of the efficiency of belief propagation with some of the accuracy of tensor networks. Looks very good for the case of perfect measurements. But how will it fare for circuit noise?