#quantum — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #quantum, aggregated by home.social.
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Cisco Introduces Universal Quantum Switch, Advancing the Path to a Quantum Network. #cisco #quantum #NetworkSwitch
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Cisco Introduces Universal Quantum Switch, Advancing the Path to a Quantum Network. #cisco #quantum #NetworkSwitch
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Cisco Introduces Universal Quantum Switch, Advancing the Path to a Quantum Network. #cisco #quantum #NetworkSwitch
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Cisco Introduces Universal Quantum Switch, Advancing the Path to a Quantum Network. #cisco #quantum #NetworkSwitch
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Cisco Introduces Universal Quantum Switch, Advancing the Path to a Quantum Network. #cisco #quantum #NetworkSwitch
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Cisco is initiating a corporate restructuring that will result in layoffs of almost 4,000 of its employees.
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Cisco is initiating a corporate restructuring that will result in layoffs of almost 4,000 of its employees.
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Cisco is initiating a corporate restructuring that will result in layoffs of almost 4,000 of its employees.
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Cisco is initiating a corporate restructuring that will result in layoffs of almost 4,000 of its employees.
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Cisco is initiating a corporate restructuring that will result in layoffs of almost 4,000 of its employees.
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Randomize (Forward collection) "Quantum physics doesn’t make any sense,” she said. “Please don’t try to think about it too much. It can be very distressing” Sale: $1.99 to $0.99 by Andy Weir Rating: 4.0/5 (10550 Reviews) #scifi #thriller #crime #heist #quantum #booksky #shortstory #kindle #books
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Randomize (Forward collection) "Quantum physics doesn’t make any sense,” she said. “Please don’t try to think about it too much. It can be very distressing” Sale: $1.99 to $0.99 by Andy Weir Rating: 4.0/5 (10550 Reviews) #scifi #thriller #crime #heist #quantum #booksky #shortstory #kindle #books
Randomize (Forward collection) -
Randomize (Forward collection) "Quantum physics doesn’t make any sense,” she said. “Please don’t try to think about it too much. It can be very distressing” Sale: $1.99 to $0.99 by Andy Weir Rating: 4.0/5 (10550 Reviews) #scifi #thriller #crime #heist #quantum #booksky #shortstory #kindle #books
Randomize (Forward collection) -
Randomize (Forward collection) "Quantum physics doesn’t make any sense,” she said. “Please don’t try to think about it too much. It can be very distressing” Sale: $1.99 to $0.99 by Andy Weir Rating: 4.0/5 (10550 Reviews) #scifi #thriller #crime #heist #quantum #booksky #shortstory #kindle #books
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QuiX Quantum's Fotonische Quantumchip toegevoegd aan het Nationaal Wetenschappelijk Erfgoed in het Rijksmuseum Boerhaave
Nederlandse mijlpaal in fotonische quantumcomputing markeert de overgang van laboratoriumonderzoek naar toegepaste technologie
/ #servicetoot voor @harld want iets met #quantum
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If quantum physics was disco music.
#audiobook #video #narration #quantum #multiverse #StringTheory
This reading is Play That Funky Music by Max Gallagher, a disabled writer from Northern Ireland. He has also been an optometrist and an astronomer. The quantum concepts are the act of observation and the wavefunction. Try to find all the references to the people and principles associated with quantum.
rjb
https://youtu.be/p-_-aaa3SHs
https://greencomet.org/2026/05/13/youtube-quantum-shorts-2-play-that-funky-music/ -
New #Paper published in Quantum: External quantum fluctuations select measurement contexts
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Why it’s essential to adopt post-quantum security now [Q&A] #QandA #CyberSecurity #Quantum
https://betanews.com/article/why-its-essential-to-adopt-post-quantum-security-now-qa/
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New #Paper published in Quantum: Multicopy quantum state teleportation with application to storage and retrieval of quantum programs
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New #Paper published in Quantum: Quantum Resource Theories beyond Convexity
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New #Paper published in Quantum: Phase-Sensitive Measurements on a Fermi–Hubbard Quantum Processor
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New #Paper published in Quantum: Polynomial time constructive decision algorithm for multivariable quantum signal processing
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New #Paper published in Quantum: Construction and Decoding of Quantum Margulis Codes
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New published in Quantum: Multicopy quantum state teleportation with application to storage and retrieval of quantum programs
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New #Paper published in Quantum: Learning symmetry-protected topological order from trapped-ion experiments
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📣#𝗘𝗤𝗨𝗜𝗣-𝗚 𝗘𝗨-𝘄𝗶𝗱𝗲 𝘄𝗼𝗿𝗸𝘀𝗵𝗼𝗽🇪🇺
📅3-5 June, 2026
📍Potsdam, Germany𝗥𝗲𝗴𝗶𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 𝗼𝗽𝗲𝗻 𝘂𝗻𝘁𝗶𝗹 𝗪𝗲𝗱𝗻𝗲𝘀𝗱𝗮𝘆, 𝗠𝗮𝘆 𝟮𝟬 𝟭𝟯:𝟬𝟬 𝗖𝗘𝗧
👉https://events.spacepole.be/event/268/ℹ️https://equip-g.eu/
#quantum⚛️ #gravity #geodesy #gravimetry🌍 -
#paperOfTheDay "Über die Eigenkräfte der Elementarteilchen I" from 1933.
This is another paper from the very early days of #quantumFieldTheory , concerned with the question of the seemingly infinite self-energy of the electron in its own electromagnetic field, namely: If the electron is point-like, then its classical electromagnetic field should be infinite at its location, which is clearly nonsense.
The present paper presents a more refined relativistic analysis, starting from the assumption that the locations where the electron "generates" the field and where it "feels" it are distinct by a small vector r. If r is space like (i.e. the two locations differ by a distance that is farther than the distance that light could travel in the same time interval), one recovers the familiar divergence. On the other hand, if r is inside the light cone (i.e. the electron "feels" its own field in its causal future or past), the divergence is absent even in the limit r->0. However, this computation only works for a classical electron in a classical electromagnetic field. Using the Dirac equation for the electron, new obstacles appear.
The present article is typical for the time when #quantum theory was being developed, but it was not at all clear how to interpret it, or whether it was even correct. Schrödinger coined the term "Zitterbewegung" for the intuition of the electron making infinitely fine random jumps at light speed; the present paper mentions this Zitterbewegung as an obvious reason for difficulties in the self-energy. Today, I would say that Zitterbewegung can be an intuitive picture, but the laws of classical #physics are simply not valid at so small scales.
https://link.springer.com/article/10.1007/BF01341363 -
#Quantum superposition
"...Asking what route such an electron takes is supposed to be like asking about, say, the political convictions of a tuna sandwich or about the marital status of the number 5. The idea is that asking such questions amounts to a misapplication of language, to what philosophers call a category mistake..."
- David Z. Albert -
Do simulations in a quantum computer affect reality?
#audiobook #video #narration #quantum #multiverse #StringTheory
This reading is Collateral Damage by Lewis Freer, a literature teacher in Yorkshire, England, and a writing hobbyist. The quantum concepts are computing, entanglement and probability. Buried a mile below ground alone with her device, June has plenty of time to think.
rjb
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Quantum physics might guide subway trains. Your commute but make it weird. When reality bends navigation becomes story logic. https://www.ianvisits.co.uk/articles/tube-trains-could-navigate-the-underground-using-the-weird-rules-of-quantum-physics-86370/ #quantum #tech #scifi
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Être ? Ou ne pas être?
OU LES DEUX SIMULTANÉMENT...En mars 2026, une équipe de #physiciens de l’ #Université de #Vienne a publié dans #PRX #Quantum des résultats qui ébranlent cette certitude fondamentale : un #processus #quantique peut simultanément paraître sans mémoire d’un point de vue et conserver cette mémoire d’un autre. Une seule #particule. Deux états logiques opposés. En même temps.
😱😱😱🤯🤯🤯
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Today at the #PQCSA workshop on Post-Quantum Cryptographic Protocols in Rome (#Eurocrypt 2026 affiliated event): Leonard Schild (COSIC, KU Leuven) discussing "PQ Private Information Retrieval".
https://esat.kuleuven.be/cosic/events/pqcsa-workshop-cryptographic-protocols/program/
#pqc #postquantum #quantum -
Arnab Roy (University of Innsbruck, Austria) talking about "The Versatile LWE Problem" at the #PQCSA workshop on Post-Quantum Cryptographic Protocols in Rome today (#Eurocrypt 2026 affiliated event).
https://esat.kuleuven.be/cosic/events/pqcsa-workshop-cryptographic-protocols/program/
#pqc #postquantum #quantum -
Thom Wiggers (PQ Shield, UK) talked about "Migrating Protocols to PQ: the good, the bad, and the ugly" at the #PQCSA workshop on Post-Quantum Cryptographic Protocols in Rome today (#Eurocrypt 2026 affiliated event).
https://esat.kuleuven.be/cosic/events/pqcsa-workshop-cryptographic-protocols/program/
#pqc #postquantum #quantum -
Weekend Reading from TechAptitude!
Get to know new Cryptography Standards (FIPS 20-3, FIPS 204, FIPS 205, FIPS 206) developed by NIST to withstand quantum attacks and prevent the so-called “Q-Day”. Q-Day is an estimate of the point in time when quantum computers will be able to reliably break existing RSA-2048 cryptography. https://techaptitude.substack.com/p/quantum-technologies-nist-drives #PQC #NIST #Cryptography #Q_Day #PostQuantumCryptography #Quantum #Encryption #CryptographyAlgorithms #TechAptitude
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How do you turn quantum physics into a company – and who dares to try?⚛️
// Peter Hörstedt – CEO Arkeon TechnologiesQuantum computing is set to be the next major technological revolution – after AI. Billions in investments are flowing worldwide, and first commercial applications are drawing closer.
Peter Hörstedt co-founded Arkeon Technologies as a spin-off from Chalmers University of Technology – developing tools that make one of the most complex steps in quantum computing scalable and industrially viable.// At #Waterkant26, Peter talks about the Swedish deep tech journey: how do you spin out a quantum innovation from Chalmers – and what does it take to turn lab research into a scalable company?
18 – 19 June 2026 // Waterkant Festival - MFG5 Kiel // GET YOUR TICKETS NOW.
https://www.talque.com/go/ticket/acLVSX2j1VHLqMuRtTn0/shop#quantumcomputing #deeptech #spinoff #entrepreneurship #innovation #chalmers #quantum #waterkant26
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#mwgic #2026 #China #QuantumComputing #QuantumComputer
Hanyuan No. 1 Becomes China’s First Commercial #Quantum #Computer https://share.google/sTylxW8oJ7cdv8adi
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The built-in assumption that a professor challenged his gifted student to use to prove that #quantum computing will always be "superior" to classical #computing was so bizzare that I cannot quite wrap my mind around the mistake.
Granted, I did work at #Intel for 6 years. And my last group being the AI silicon trying to help mathematicians improve their #AI model's/models' efficiency .... but I suppose my data point just goes to show that theoretical math can stray pretty far from actual machine learning and computing.
Anybody who has ever built a program that can upload a csv to a database knows this intuitively. The "cost" of a parameter-based search ought to include both load time and compute time. One can write helpers that speed-up LLMs that tend to quantize models by key terms and frequency of those key terms in a language.... and then map heavy nodes to higher-memory compute, right? This is why models with "trillions" of parameters tend to be very expensive to compile and run.
The inherent assumption that all the data in a quantum algorithm is already loaded? This seems like a #CS 101 kinda mistake.
I love this field and cannot wait to go back to work, I'm already brainstorming a whitepaper about this topic. Writing and editing whitepapers is one of the things I miss
That being said, Ewin Tang is an astoundingly smart gal, completely deserving of the awards.
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The built-in assumption that a professor challenged his gifted student to use to prove that #quantum computing will always be "superior" to classical #computing was so bizzare that I cannot quite wrap my mind around the mistake.
Granted, I did work at #Intel for 6 years. And my last group being the AI silicon trying to help mathematicians improve their #AI model's/models' efficiency .... but I suppose my data point just goes to show that theoretical math can stray pretty far from actual machine learning and computing.
Anybody who has ever built a program that can upload a csv to a database knows this intuitively. The "cost" of a parameter-based search ought to include both load time and compute time. One can write helpers that speed-up LLMs that tend to quantize models by key terms and frequency of those key terms in a language.... and then map heavy nodes to higher-memory compute, right? This is why models with "trillions" of parameters tend to be very expensive to compile and run.
The inherent assumption that all the data in a quantum algorithm is already loaded? This seems like a #CS 101 kinda mistake.
I love this field and cannot wait to go back to work, I'm already brainstorming a whitepaper about this topic. Writing and editing whitepapers is one of the things I miss
That being said, Ewin Tang is an astoundingly smart gal, completely deserving of the awards.
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Tracking BitCoin "Q-Day".
Researcher cracks 15-bit elliptic curve key, aka an Elliptic Curve Cryptography (ECC) Key using public quantum hardware and is awarded the “Q-Day Prize bounty" of 1 BTC.
BitCoin and Ethereum utilize ECC - the larger 256 bit key - specifically the secp256k1 curve, for securing wallets and transactions. https://decrypt.co/365444/bitcoin-q-day-draws-nearer-quantum-researcher-breaks-simplified-key #Bitcoin #Cryptography #Ethereum #Crypto #CryptoCurrencies #Encryption #Security #ECC #EllipticCurve #QDay #DigitalSignature #BlockChain #QuantumComputing #Quantum #BTC
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BREAKING! GnuPG introduces quantum-resistant ML-KEM (Kyber) as encryption algorithm!
https://lists.gnupg.org/pipermail/gnupg-announce/2026q2/000504.html
This is great news! However, as I've been saying for a while, we should stop considering Harvest-Now-Decrypt-Later as the only thing to be immediately concerned about. The problem of signatures (Trust-Now-Forge-Later) is wrongly assumed to be way less urgent, but the reality is that rolling out a certificate migration will be extremely painful, and quantum attacks against signatures will be stealthy and of difficult attribution initially. Especially for a project like GnuPG, it's extremely important to adopt quantum-resistant signatures ASAP.
#crypto #cryptography #PGP #GnuPG #quantum #security #privacy #cypherpunk
