Joe Fitzsimons

Horizon Quantum Explores Faster Ways to Fault-Tolerant Quantum Computing with Alice & Bob Horizon Quantum and Alice & Bob announced a strategic collaboration to leverage both companies’ strengths and streamline the development and deployment of fault-tolerant quantum computing software.

Today, we are excited to announce a strategic collaboration with Alice & Bob to leverage both our companies’ strengths and streamline the development and deployment of fault-tolerant quantum computing software.
www.horizonquantum.com/updates/news...

We can set up a call early in the new year if you are interested to see it. Our tools aren’t open source.

We’ll be showing a preview of Beryllium at Q2B. Beryllium is an object-oriented language that allows developers to build ever higher levels of abstraction. If you are at Q2B, you can visit the stand for a demo of Beryllium and more.

Delighted to see this paper finally out. I had the initial discussion with @aspuru.bsky.social that set us on this path well over a decade ago. Well done to my co-authors who did all the real work.

But it is -very- black, and I’ve been explaining the difficulty of photonic quantum computing lately by pointing out it’s the same thing that makes lightsabers hard to build.

Weird, I was only going for a Die Hard reference in my post.

Now I have a quantum computer. Ho ho ho.

They do focus on quantum computing under "Later developments" here: www.nobelprize.org/uploads/2025...

If you're at #APSSummit25 and interested in what we're doing, drop by the stand to say hi to the team.

Unfortunately, I can't make it myself, but you're in good hands with Philip, Angelina, Jessica, Pooja and Denis.

You know you’re getting old when artefacts from your youth start showing up in museums.

YouTube video by QC Ware Q2B24 Silicon Valley | Dr. Joe Fitzsimons, CEO, Horizon Quantum

At #Q2B Silicon Valley 2024, our CEO @jfitzsimons.bsky.social unveiled new capabilities that are now integrated into Triple Alpha, concluding the initial steps we are taking towards building a quantum operating system.

www.youtube.com/watch?v=rl3T...

I'm in Palo Alto for a few weeks. Anyone around?

Since there is less than an hour left in 2024 here, I guess I need to make a new year prediction for quantum computing for the coming year. Here it is: now we're past the error correction threshold, we're going to find that qubit lifetimes will increase super exponentially with time.

Spotted at a cablecar station in Tromso, in the very north of Norway. The hazards seem to be slip, trip, fall from a height and James Bond.

Another year, another Q2B, another reason to visit @computerhistory.bsky.social. Who’s going to be first to get a dilution refrigerator on display there?

Our paper on distributed blind computing is out on Arxiv! In short: we performed gates on our spin qubits remotely using photons without our nodes knowing what we did - all thanks to distributed matter-light entanglement 🥳

Congratulations! And don’t worry too much about the numbers. Some papers peak early, others pick up momentum over time. The main thing is to be ambitious in the problems you tackle and tenacious enough to see them through. Those papers do better over time than jumping on the hot topic of the day.

Will you be at Q2B?

Basically, once you start to create correlations between regions, the individual regions are necessarily in a mixed state.

@csferrie.bsky.social's answer is correct. More generally, the observable universe can become mixed. Even if the universe starts is a pure, separable state, the observable universe rapidly becomes mixed, due to photons carrying information away from a given region at the speed of light.

I’ve convinced our marcomms team that quantum twitter has been moving over here.

It took me longer than I am prepared to admit to come up with this dumb joke.

Cold weather is clearly a big advantage for doing low temperature physics. This is known as the Leiden frost effect.

I was more hinting at the fact that it’s very warm there.

I had the chance to visit Bluefors today in Helsinki. CQT may have made Singapore the coolest place on the equator, but I can’t help thinking that there is a reason Singapore didn’t spawn the world’s leading manufacturer of dilution refrigerators.

YouTube video by Bloomberg Media Studios Turning Point: The Quantum Opportunity | Presented by HSBC

Delighted to share a short video on our journey at Horizon Quantum from Bloomberg and HSBC.
youtu.be/qBiDyd4wRyc?...

The secret but desirable sort, I think.

Oh, they don’t need to be online. I’m quite far out of touch with the current crop of students so good to know who’s doing interesting things, but more immediately I’m also organising an event.

Question for quantum bluesky: Which PhD students are doing the most interesting QC work at the moment? All the people I thought were PhD students now have tenure.

If you’re a quantum physicist, you should watch Oppenheimer. I have no time for the Oppenheimer-envy that so many in AI seem to be experiencing. The parable of Oppenheimer for physicists is about the weight of the work of those that went before. It’s our Iron Ring.