Korbinian Kottmann @qottmann.bsky.social · 19/08/2026While the lumper* in me doesnt mind a little lumping, it's great to know the actual difference between these techniques in a succinct fashion * en.wikipedia.org/wiki/Lumpers... 030
Korbinian Kottmann @qottmann.bsky.social · 19/08/2026"Wait, these are not all the same?" - So many people using these interchangeably 🫠 Emily Nobes to the rescue! pennylane.ai/blog/2026/08...pennylane.aiChoosing between QSP, QSVT, and GQSP | PennyLane BlogHave you ever found yourself toiling over which technique to use for your polynomial transformation needs? Learn the difference between QSP, QSVT, and GQSP to better understand when each serves us bes... 121
Korbinian Kottmann @qottmann.bsky.social · 02/06/2026"I enjoyed publishing some cheeky ZKPs, but I don’t think it’s the right strategy moving forward. The benefits are negligible, and the costs are many. We should just publish openly." 🚀 010
Korbinian Kottmann @qottmann.bsky.social · 06/05/2026Everything makes so much more sense once you realize whether you are a lumper or a splitter en.wikipedia.org/wiki/Lumpers...en.wikipedia.orgLumpers and splitters - Wikipedia 000
Korbinian Kottmann @qottmann.bsky.social · 10/04/2026First time I'm seeing arxiv.wiki (it's now (?) automatically linked on scirate. Looks like a great initiative, right up my alley!arxiv.wikiarXiv.wiki: enriched e-Prints 131
Korbinian Kottmann @qottmann.bsky.social · 25/03/2026asking in light of recent neutral atom computing platform news (Oratomic & Google) bsky.app/profile/vva.... bsky.app/profile/vva.... 030
Korbinian Kottmann @qottmann.bsky.social · 25/03/2026Genuine question as I am not up to date: were there major innovations in neutral atom computing that circumvent the problem of having to physically shuttle atoms, leading to unfortunate (logical) clock rates? 350
Korbinian Kottmann @qottmann.bsky.social · 24/03/2026you know how they say, sometimes 115 quantikz circuit diagrams say more than a thousand words.. new preprint "parameter-optimal unitary synthesis with flag decompositions" w/ @dwierichs.bsky.social Guillermo and Nathan scirate.com/arxiv/2603.2... 181
Korbinian Kottmann @qottmann.bsky.social · 21/03/2026My impression is that hope is not very vague once you go beyond static things like ground states, at least I dont see how you'd do accurate dynamic simulations at scale Here is a sober perspective from arguably one of the top classical simulation groups quantumfrontiers.com/2026/03/12/t... 130
Korbinian Kottmann @qottmann.bsky.social · 20/03/2026Not saying it's not risky but the cliché that there are no applications beyond Shor is a bit outdated imo, in case that is what you are alluding to 100
Korbinian Kottmann @qottmann.bsky.social · 20/03/2026I'm asking because my impression is that if you look past LinkedIn and hype press releases there are very serious people doing very serious analyses of feasible applications, possible revenue streams and their cost. 110
Korbinian Kottmann @qottmann.bsky.social · 20/03/2026What makes you say there is no compelling business case? 100
Korbinian Kottmann @qottmann.bsky.social · 25/02/2026typos ftw: I'd much rather read your raw scribblings than your polished and soulless AI-generated deliberations 040
Korbinian Kottmann @qottmann.bsky.social · 24/02/2026@mozilla.org Firefox lowkey the best browser for these two features alone: - cmd+tab cycles through tabs in recently used order - you can go back and forth between hyperlinks _within_ a pdf using the back and forward buttons 020
Korbinian Kottmann @qottmann.bsky.social · 04/02/2026What do you use to generate these neat surface code illustrations? I recently found a stackexchange thread where you replied saying you're writing svgs from scratch, is that still the case 😅? 130
Reposted by Korbinian KottmannRiverlane @riverlane.com · 27/01/2026Thinking about a career in #quantumcomputing but don't have a #quantum #physics degree? 🤔 You might be surprised! Our head of talent, Emily, shares crucial insights in her latest post, debunking common myths and offering practical advice for anyone looking to enter this exciting field... 🧪🧵1/5 111
Korbinian Kottmann @qottmann.bsky.social · 19/01/2026This perspective paper from 2024 uses it in the latter sense you describe (afai can tell), which also makes most sense for the name imo. I agree that the former is just FTQC. journals.aps.org/prxquantum/a...journals.aps.orgEarly Fault-Tolerant Quantum ComputingAs quantum computing transitions into the fault-tolerant regime, understanding how best to utilize available architectures becomes paramount. 030
Korbinian Kottmann @qottmann.bsky.social · 10/01/2026Damn, I would have sounded so much smarter if I said something along the lines of: "what a nice coincidence that we have a golden euro-cad conversion rate." Chance missed 🥲 010
Korbinian Kottmann @qottmann.bsky.social · 10/01/2026That's 13-15 qubits, nothing quantum Shannon decomposition can't handle! So I'm not too worried about that :) or am I missing something crucial here? 000
Korbinian Kottmann @qottmann.bsky.social · 09/01/2026Another way to view it: Great! Now we have a very good initial state in form of that MPS to run quantum algorithms on 🙃 140
Korbinian Kottmann @qottmann.bsky.social · 08/01/2026Anybody with experience using / contributing to www.qeios.com ?qeios.comQeios - Research you can trustThe Open Science platform reshaping scholarly communication. 110
Korbinian Kottmann @qottmann.bsky.social · 06/01/2026That's the most positive blog I've read from Scott Aaronson scottaaronson.blog?p=9425 020
Korbinian Kottmann @qottmann.bsky.social · 06/01/2026PSA: papers from early 2023 are three years old now. 000
Korbinian Kottmann @qottmann.bsky.social · 19/12/2025I can't stop laughing at this particular one 😂 010
Korbinian Kottmann @qottmann.bsky.social · 02/12/2025I will not tire of whining about overleaf and quantikz speeds 070
Korbinian Kottmann @qottmann.bsky.social · 14/11/2025I didnt know this existed, thank you so much! Looks very solid, in particular, the tequila drawer looks amazing! Any connection to github.com/tequilahub/t... ot coincidence?github.comGitHub - tequilahub/tequila: A High-Level Abstraction Framework for Quantum AlgorithmsA High-Level Abstraction Framework for Quantum Algorithms - tequilahub/tequila 010
Korbinian Kottmann @qottmann.bsky.social · 13/11/2025All I want for christmas is a (better) quantikz equivalent for @typst.app (and arxiv+journal support) Using overleaf.com after typst.app just feels like going around in a horse-drawn carriage in 2025 - gets you from A to B, and is kinda cool and vintage, but just extremely slow and cumbersome. 181
Korbinian Kottmann @qottmann.bsky.social · 13/11/2025complete darkness at 5pm is just not something I will ever get used to 🥲 010
Korbinian Kottmann @qottmann.bsky.social · 13/11/2025To be fair the first week after switching back from daylight saving time feels like having one extra hour per day, but that never lasts long. I totally get that some people prefer it. I just feel like true early birds by choice of profession still have to get up in the dark anyway 🤷 110
Korbinian Kottmann @qottmann.bsky.social · 13/11/2025Wait, daylight saving time is summer time, right? That one, I love! But I guess that is not what you mean :D That "exact <boom> it's winter" moment is what hits me hard every year. 000
Korbinian Kottmann @qottmann.bsky.social · 12/11/2025I heard someone say reverting daylight saving time in October is like "trading one hour of sleep (once) for five months of darkness" and now I cant unhear it. 200
Korbinian Kottmann @qottmann.bsky.social · 22/10/2025OMGOMGOMGOMGOMG I DIDNT KNOW THIS WAS COMING SO SOON AAAAAAH *runs to closest bookstore*cancels all plans* 020
Korbinian Kottmann @qottmann.bsky.social · 25/09/2025In case you haven't already: there is one more week to fill the @unitary.foundation quantum OSS survey for anyone using or developing qc software unitary.foundation/posts/2025_q...unitary.foundationThe 2025 QOSS Survey is Open! - Unitary FoundationUnitary Foundation 051
Korbinian Kottmann @qottmann.bsky.social · 04/09/2025It is that time of year again! The @unitary.foundation qOSS survey is here! Please consider filling it out if you are using, developing or maintaining any quantum OSS like @pennylaneai.bsky.social or similar unitary.foundation/posts/2025_q... 073
Reposted by Korbinian KottmannCraig Gidney @craiggidney.bsky.social · 01/08/2025The first novel thing I did in quantum computing was find a way add +1 to a register using O(1) space and O(n) gates. For 10 years I've wanted to know how to generalize that from x+=1 to x+=C... and I finally figured out a way to do it! arxiv.org/abs/2507.23079 3261
Reposted by Korbinian KottmannJoseph Bowles @josephbowles.bsky.social · 23/07/2025New opening in the QML team @ Xanadu! xanadu.applytojob.com/apply/v1gc8F...xanadu.applytojob.comQuantum Machine Learning Researcher (Remote) - Xanadu - Career PageApply to Quantum Machine Learning Researcher (Remote) at Xanadu in Toronto, ON, Canada. 042
Korbinian Kottmann @qottmann.bsky.social · 01/07/2025or you can listen to my ramblings here www.youtube.com/watch?v=rMyC...youtube.com2025 QUANTUM PROGRAM ❯ Day 11 ❯ Quantum Simulation and Lie Theory (Dr. Korbinian Kottmann)YouTube video by WISER 140
Korbinian Kottmann @qottmann.bsky.social · 26/06/2025Being square 🟥 is allright: it will be essentially a condensed version of the following 4 tutorials [1] pennylane.ai/qml/demos/tu... [2] pennylane.ai/qml/demos/tu... [3] pennylane.ai/qml/demos/tu... [4] pennylane.ai/qml/demos/tu...pennylane.aiIntroducing (dynamical) Lie algebras for quantum practitioners | PennyLane DemosA gentle introduction to Lie theory covering the basics of Lie algebras and Lie groups in the context of quantum computing. 130
Korbinian Kottmann @qottmann.bsky.social · 26/06/2025I'm giving an (online) talk next Monday. Be there or be square 🟥 www.thewiser.org/agenda 162
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