Joe Fitzsimons

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Joe Fitzsimons

Joe Fitzsimons

@jfitzsimons

Physicist. Founder and CEO @horizon_quantum. Former @quantumlah PI and associate professor. Slowly drifting south-east (Dublin-Oxford-Singapore).

Singapore Katılım Temmuz 2009
583 Takip Edilen8.6K Takipçiler
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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
Delighted to be able to share that we expect to begin trading on Nasdaq tomorrow as $HQ. After 7 years of work, it’s great to finally reach the starting line. $DMYY horizonquantum.com/resources/news…
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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
@PeteShadbolt Somebody has to build it! I spent far too long trying to understand the details of the RHG scheme from their two (not entirely consistent) papers back in my PhD days. I suspect @earltcampbell has similar trauma.
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Pete Shadbolt
Pete Shadbolt@PeteShadbolt·
team seems to have filled the entire building with raussendorf lattice? someone should have told them surface code is cringe now :(
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Lance Fortnow
Lance Fortnow@fortnow·
My suggestion for a prediction market: A publicly posted prime factorization of RSA-1024 by 2030. This would be meant as a test for quantum computing, but by not requiring any method for factoring, it makes it much easier to verify. @Polymarket @Kalshi
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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
@MinatoYuichiro I should of course have mentioned that photons are the most beautiful qubits of all, and would be the obvious winner if only they would bounce off each other and weren’t so easy to lose.
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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
I’ve been in quantum computing about a decade more than that. For almost all of that time I’ve been hearing that silicon will win in the long run from people who work on it. But the reality is that trapped ions have the best fidelities, neutral atoms are reaching the highest qubits counts, and superconducting systems have matured faster. I’d love to see semiconductor systems take a giant leap forward, but there is a reason they aren’t attracting the most attention right now.
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Yuichiro Minato
Yuichiro Minato@MinatoYuichiro·
12年量子コンピュータやってて、半導体量子コンピュータが本命でダントツだと思ってるんですが、全く注目されない。みんな量子コンピュータに興味ないんですか!?
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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
What this video doesn’t show is that I was so exhausted at this point, from all of the last minute work, that I only just about made it through lunch with the team and was asleep at 4pm.
Horizon Quantum@horizon_quantum

One month on, and it’s still sinking in. We’re incredibly proud of becoming a @Nasdaq-listed company, and we’re grateful to everyone who contributed to this milestone. Watch our Founder & CEO @jfitzsimons and CSO @sihuitan at the bell ringing ceremony.

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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
@SaidHaschemi I don’t know what you’re laughing at. As you can tell by my Norman surname, my family left France a mere 900 years ago. Yet when I try to speak French to waiters in Paris, they also switch to English. It couldn’t possibly be that my French isn’t as good as I think it is.
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Said A. Haschemi
Said A. Haschemi@SaidHaschemi·
This is the level of humor I need for a Friday. Guy that lived all his life outside of Germany trying to make a gotcha tweet about people in Germany
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John Loeber 🎢@johnloeber

Germany Is Going Away I've been going back to Germany often over the last three years. One thing stands out every time: nobody speaks fluent German anymore. I kept count on a trip earlier this year. I interacted with ~20 people -- baristas, taxi drivers, store clerks, etc. and I'd involve them in conversation long enough to get a feel for their fluency. ~15 of them just wouldn't pass what I'd consider a reasonable language test. Broken grammar, poor diction. All my interactions were friendly and polite, but these people just don't speak the language. In the most egregious cases, they default to English instead. I found it just baffling to talk to people in positions of relative importance -- airport staff, for example -- and hear them fuck up Der/Die/Das. Let me explain. I lived in Germany from 1997 through 2002, Kindergarten through 3rd grade. Nearly all my childhood memories involve only natively fluent speakers. Some of them had immigration backgrounds, but the level of integration, i.e. language fluency was very high. It would've been unthinkable to run into people several times a day who just struggle to communicate. This is the type of thing that's probably hard to notice if you live there: the proverbial frog in boiling water. But I notice it very clearly because I go back so rarely, sometimes years apart. Every time it hits like a ton of bricks: "that's not how I remember it!" And the changes over the ~2 decades that I've been gone are very, very clear. A generation of workers has aged out, i.e. been replaced by a new generation, and so the demographics have shifted. Nowhere is it clearer than in the ability of people in public life to communicate in the German language. What I cannot stress enough is how weird this feels. For the vast majority of my readers: you have never experienced anything like this. You probably never will. It is an exceedingly strange and alienating feeling to return to a familiar place -- home at one point in your life -- and to find that people there can't speak the language anymore. They literally can't. The culture you grew up with is no more, and you may look around for someone else who understands, but you are all alone.

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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
Delighted to be working with AQT. Fun fact: Horizon Quantum and AQT CEOs (along with many others) co-authored a paper back in 2021 using quantum computers to check each others work: journals.aps.org/prx/pdf/10.110…
AQT@AQT_GmbH

Today, we are excited to announce that we have entered a strategic collaboration with @horizon_quantum to advance the development of real-world #quantum computing applications via increased hardware-software integration. 👉 Read the full press release here aqt.eu/horizon-quantu…

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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
@willknight There are quite a few videos on youtube of people doing large models using Exo with RDMA over Thunderbolt on small Mac Studio clusters.
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Will Knight
Will Knight@willknight·
does anyone have advice for how to run a 754b parameter model at home? i am quite serious.
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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
We're pushing forward with our effort to unlock broad quantum advantage by adding a frontier system to our testbed: @IonQ_Inc 's next-gen 256 qubit system, which is expected to have more nines of fidelity than you can shake a stick at. Looking forward to seeing the system come together and to integrating it with Triple Alpha. See the press release for further details.
Horizon Quantum@horizon_quantum

We entered into a strategic agreement with @IonQ_Inc, furthering our efforts to enable broad quantum advantage. horizonquantum.com/resources/news… By purchasing one of IonQ’s 256-qubit trapped-ion systems, we aim to expand the capabilities of our hardware testbed with a second modality.

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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
@Rick101284 That percentage is of class A shares, not of all shares. Specifically, it does not take into account the existing class B shares.
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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
One of the reasons I am so optimistic about broad quantum advantage is how far from optimal early quantum algorithms and fault-tolerance schemes have turned out to be. The recent progress on factoring, including today's results, is astounding.
Craig Gidney@CraigGidney

As timelines tighten, details might benefit attackers more than defenders. So we're trying something weird: proving a circuit exists without revealing it. For example, here's a zero-knowledge proof that we found 10x smaller quantum circuits for ECDLP: github.com/tanujkhattar/z…

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Joe Fitzsimons retweetledi
Horizon Quantum
Horizon Quantum@horizon_quantum·
Céad míle fáilte to the Irish delegation we hosted in Singapore for St Paddy’s Day, led by Minister @FrankFeighan TD and Ambassador Sarah McGrath @IEAmbSingapore. They toured our testbed, received a demo of Triple Alpha, and celebrated the links between Ireland and Singapore.
Horizon Quantum tweet mediaHorizon Quantum tweet mediaHorizon Quantum tweet mediaHorizon Quantum tweet media
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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
I’ll write a proper update once I’ve had some sleep. For now I’m exhausted but extremely proud of our team @horizon_quantum.
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Joe Fitzsimons
Joe Fitzsimons@jfitzsimons·
Some personal news …
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