Dulwich Quantum Computing
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dulwichquantum.bsky.social
Dulwich Quantum Computing
@dulwichquantum.bsky.social
Parody quantum computing startup from South London
https://dulwichquantum.github.io/
Pinned
Our starter pack of quantum PhD students is now full! (Unfortunately Bluesky caps it at 150.) We're happy to report that we have rescued at least 36 souls from X who joined Bluesky via our starter pack!
go.bsky.app/AUTn1di
Quantum PhD students
Join the conversation
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If you add a "q" in your surname, you become a quantum startup!
November 20, 2025 at 9:31 AM
Can't wait to be able to simulate a NISQ computer on a fault-tolerant one!
⏰ The time to act is now: Download the full report first to gain deeper insights and chart your course in the QEC era: www.riverlane.com/quantum-erro...

🧪🧵(5/5) @decodoku.bsky.social @mothquantum.bsky.social
November 19, 2025 at 12:10 PM
Going through my checklist of what quantum computing companies have promised so far:
✔️ cure disease
✔️ solve climate change
✔️ solve food insecurity

Also, you often hear that quantum will improve AI, which in turn is supposed to speed up solving everything that AI has been promised to solve.
Some of you point out that the big players have used various tricks to keep their own $ safe. True.

That's why we need to think about how to prosecute them for fraud.

Those bubble-inflating claims - AI will cure all disease! end climate change! double lifespans! - are essentially Theranos X 1000.
The AI bubble may be about to bust.

Peter Thiel has sold all of his Nvidia stock.

We all need to say this very clearly:

NO BAILOUTS FOR THEFT-TECH!

Expropriate their asses instead.

They stole from all of us and fully plan to burn the planet.

They owe us - not the other way around. 1/3
November 19, 2025 at 10:02 AM
Me with Hagoromo chalk.
give this kid a PhD
November 17, 2025 at 6:56 AM
2025 is officially the year of "vibe coding".
www.bbc.com/news/article...
'Vibe coding' named word of the year by Collins Dictionary
The art of making an app by describing it to artificial intelligence (AI) tops 10 new terms on the shortlist.
www.bbc.com
November 16, 2025 at 9:39 PM
Not sure what to wear tomorrow? Use shallow quantum circuits to decide this! They "can accurately reproduce the short-horizon dynamics of discrete-time Markov chains derived from fashion electronic-commerce recommendation links".
arxiv.org/abs/2511.08200
Quantum Markov Chains: Hub-Pruned Estimation for Fashion Recommenders
We investigate whether shallow quantum circuits can accurately reproduce the short-horizon dynamics of discrete-time Markov chains derived from fashion electronic-commerce recommendation links. Transi...
arxiv.org
November 16, 2025 at 7:59 AM
Even quantum CEOs are better at this.
futurism.com/artificial-i...
November 15, 2025 at 8:46 PM
Reposted by Dulwich Quantum Computing
Can I call them quantum panini relative entropies instead of sandwiched?
November 15, 2025 at 4:07 AM
Reposted by Dulwich Quantum Computing
A recent @nature.com article claims that classical (unquantised) gravity produces entanglement. We show that their model does not produce entanglement. Even if the model produced entanglement, it would be mediated by the quantised matter interaction, and not gravity. scirate.com/arxiv/2511.0... 🧪⚛️
Classical gravity cannot mediate entanglement
In Nature, 646, 813 (2025), Aziz and Howl claim that classical (unquantised) gravity produces entanglement. We show that their model does not produce entanglement. Even if the model produced entanglem...
scirate.com
November 11, 2025 at 3:24 PM
Well-informed and accurate takes on the current state of quantum computing by @dangaristo.bsky.social. Good listen if you're outside the field or just entering it and want to get an honest picture.

Kudos for using the term "physics experiment" instead of "computer", and for coining "quantum FOMO".
November 13, 2025 at 6:05 AM
Did you know that in 2015 quantum computers were supposed to go "faster than the universe"?
The power claim seems WAY inflated to me. A state vector sim of a 98-qubit 26-layer circuit costs ~10^-10 J * 2^98 * 26 * 98 ~= 10^23 J. Helios takes ~200ms*26 ~= 5 seconds for a sample, implying ~10^22 W not 10^49 W.

Regardless, it's no match for dwave's old "faster than the universe" plot:
November 12, 2025 at 6:47 PM
"Our results show a classical supercomputer would require more power than the Sun—or, in fact, the combined power of all stars in the visible universe—to complete the same task in the same amount of time."

But ChatGPT just gave me a long list of superheros that are more powerful than the sun!
November 12, 2025 at 6:44 AM
Love the puzzles in the first section and their solutions in Appendix A. They address common misconceptions about quantum computing.
arxiv.org/abs/2508.05720
The vast world of quantum advantage
The quest to identify quantum advantages lies at the heart of quantum technology. While quantum devices promise extraordinary capabilities, from exponential computational speedups to unprecedented mea...
arxiv.org
November 10, 2025 at 6:57 AM
November 8, 2025 at 12:19 PM
Reposted by Dulwich Quantum Computing
Remember, always sit down before opening the QIP results email.
www.huffpost.com/entry/watch-...
November 8, 2025 at 3:24 AM
The feeling when your paper gets rejected from QIP.
November 8, 2025 at 7:32 AM
Remember, always sit down before opening the QIP results email.
www.huffpost.com/entry/watch-...
November 8, 2025 at 3:24 AM
Bivariate bicycle codes in the wild.
arxiv.org/abs/2506.03094
November 7, 2025 at 8:59 PM
Me waiting for QIP results tomorrow.
November 6, 2025 at 10:04 AM
The only thing that could possibly be hotter than Italian twins explaining entanglement in Italian is Italian triplets explaining the GHZ state.
November 5, 2025 at 10:10 PM
"For an investment of just ten million dollars, I can convince a dumber, richer person to put even more money in before you cash out."
-- SMBC's take on quantum computing ecosystem
www.smbc-comics.com/comic/quantum
November 5, 2025 at 5:18 PM
If I was the CEO of Springer Nature (instead of Dulwich Quantum), I would offer authors a new "pro" tier where you can bid to make your article be the 1st in a volume, and the bidding starts at 10 * (article processing charge).
5️⃣/🔟 In Scientific Reports, 5 of the top 10 most cited articles have an article number of 1.

5️⃣/🔟 In Nature Communications the same: 5 of the top 10 are article 1s.

Coincidence? 👇
scirate.com/arxiv/2511.0...
I think not.
November 5, 2025 at 5:07 PM
Reposted by Dulwich Quantum Computing
We should add a “repurpose outdated closed and extractive paper processing fees” donate button to the @unitary.foundation website
Should I support three @unitary.foundation microgrants for creating open-source quantum tools or educational materials, or should I pay the article processing charge for one Nature paper (which is already available on arXiv for free)? Tough choice...
𝗘𝘃𝗼𝗹𝘃𝗲 𝘄𝗶𝘁𝗵 𝗨𝘀 𝘁𝗵𝗶𝘀 𝗚𝗶𝘃𝗶𝗻𝗴 𝗧𝘂𝗲𝘀𝗱𝗮𝘆.
At Unitary Foundation, we’re building an open and accessible quantum future—one explorer at a time. This year, our goal is to fully fund a $4,000 UF Microgrant to empower an innovator creating open-source quantum tools or educational materials.
November 5, 2025 at 4:32 PM
Should I support three @unitary.foundation microgrants for creating open-source quantum tools or educational materials, or should I pay the article processing charge for one Nature paper (which is already available on arXiv for free)? Tough choice...
𝗘𝘃𝗼𝗹𝘃𝗲 𝘄𝗶𝘁𝗵 𝗨𝘀 𝘁𝗵𝗶𝘀 𝗚𝗶𝘃𝗶𝗻𝗴 𝗧𝘂𝗲𝘀𝗱𝗮𝘆.
At Unitary Foundation, we’re building an open and accessible quantum future—one explorer at a time. This year, our goal is to fully fund a $4,000 UF Microgrant to empower an innovator creating open-source quantum tools or educational materials.
November 5, 2025 at 8:11 AM