Quantum computers could revolutionize the way we tackle problems that stump even the best classical computers.
Single atom transistor recently introduced has been seen as a tool that could lead the way to building a quantum computer. For general introduction how quantum computer work, read A tale of two qubits: how quantum computers work article.
D-Wave Announces Commercially Available Quantum Computer article tells that computing company D-Wave has announced that they’re selling a quantum computing system commercially, which they’re calling the D-Wave One. D-Wave system comes equipped with a 128-qubit processor that’s designed to perform discrete optimization operations. The processor uses quantum annealing to perform these operations.
D-Wave is advertisting a number of different applications for its quantum computing system, primarily in the field of artificial intelligence. According to the company, its system can handle virtually any AI application that can be translated to a Markov random field.
Learning to program the D-Wave One blog article tells that the processor in the D-Wave One – codenamed Rainier – is designed to perform a single mathematical operation called discrete optimization. It is a special purpose processor. When writing applications the D-Wave One is used only for the steps in your task that involve solving optimization problems. All the other parts of your code still run on your conventional systems of choice. Rainier solves optimization problems using quantum annealing (QA), which is a class of problem solving approaches that use quantum effects to help get better solutions, faster. Learning to program the D-Wave One is the first in a series of blog posts describing the algorithms we have run on D-Wave quantum computers, and how to use these to build interesting applications.
But is this the start of the quantum computers era? Maybe not. D-Wave Announces Commercially Available Quantum Computer article comments tell a story that this computer might not be the quantum computer you might be waiting for. It seem that the name “quantum computer” is a bit misleading for this product. There are serious controversies around the working and “quantumness” of the machine. D-Wave has been heavily criticized by some scientists in the quantum computing field. First sale for quantum computing article tells that uncertainty persists around how the impressive black monolith known as D-Wave One actually works. Computer scientists have long questioned whether D-Wave’s systems truly exploit quantum physics on their products.
Slashdot article D-Wave Announces Commercially Available Quantum Computer comments tell that this has the same central problem as before. D-Wave’s computers haven’t demonstrated that their commercial bits are entangled. There’s no way to really distinguish what they are doing from essentially classical simulated annealing. Recommended reading that is skeptical of D-Wave’s claims is much of what Scott Aaronson has wrote about them. See for example http://www.scottaaronson.com/blog/?p=639, http://www.scottaaronson.com/blog/?p=198 although interestingly after he visited D-Wave’s labs in person his views changed slightly and became slightly more sympathetic to them http://www.scottaaronson.com/blog/?p=954.
So it is hard to say if the “128 qubits” part is snake oil or for real. If the 128 “qubits” aren’t entangled at all, which means it is useless for any of the quantum algorithms that one generally thinks of. It seem that this device simply has 128 separate “qubits” that are queried individually, and is, essentially an augmented classical computer that gains a few minor advantages in some very specific algorithms (i.e. the quantum annealing algorithm) due to this qubit querying, but is otherwise indistinguishable from a really expensive classical computer for any other purpose. This has the same central problem as before: D-Wave’s computers haven’t demonstrated that their commercial bits are entangled.
Rather than constantly adding more qubits and issuing more hard-to-evaluate announcements, while leaving the scientific characterization of its devices in a state of limbo, why doesn’t D-Wave just focus all its efforts on demonstrating entanglement, or otherwise getting stronger evidence for a quantum role in the apparent speedup? There’s a reason why academic quantum computing groups focus on pushing down decoherence and demonstrating entanglement in 2, 3, or 4 qubits: because that way, at least you know that the qubits are qubits! Suppose D-Wave were marketing a classical, special-purpose, $10-million computer designed to perform simulated annealing, for 90-bit Ising spin glass problems with a certain fixed topology, somewhat better than an off-the-shelf computing cluster. Would there be even 5% of the public interest that there is now?
1,157 Comments
Tomi Engdahl says:
https://hackaday.com/2023/06/17/intel-to-ship-quantum-chip/
Tomi Engdahl says:
Iran’s Military Quantum Claim: It’s Only 99.4% Ridiculous
https://hackaday.com/2023/06/15/irans-quantum-computing-on-fpga-claim-its-kinda-a-thing/
When Iran recently announced a quantum processing algorithm (Google translation) that would help its military to detect water surface disturbances, the instant response from Western media was one of ridicule, based on the displayed hardware. The hardware in question was the Digilent ZedBoard Zynq-7000 hybrid SoC/FPGA development board, which can be yours for less than $600.
Seems absurd, and the claim about any realistic military use absolutely is. But buried deep, deep down, there may be a tiny kernel of truth: because quantum computers are inherently parallel, FPGAs can make a good fit for small-scale quantum simulations.
Does this mean that the Iranian Navy would be better off simulating quantum circuits on an FPGA board than on a GPU or even a used laptop? Probably not. Will this hardware serve the proposed military application in the forseeable future? Absolutely not! Was this a misleading and ridiculous photo op? Yup. 100%.
But is emulating qubits in FPGA fabric a real thing? Turns out it is! Let’s have a look.
Tomi Engdahl says:
https://etn.fi/index.php/13-news/15098-intel-mukaan-kvanttiprosessorien-kisaan
Tomi Engdahl says:
IBM:n kvanttikone voitti klassisen koneen mallinnuksessa
https://etn.fi/index.php/13-news/15104-ibm-n-kvanttikone-voitti-klassisen-koneen-mallinnuksessa
Yksi kvanttilaskennan mittareita on ollut todistaa, että kvanttitietokone pystyy ylittämään klassisen supertietokoneen laskentakyvyn. Nyt IBM on todistanut tämän 127 kubitin prosessoriin perustuvalla kvanttikoneellaan.
IBM Quantumin ja UC Berkeleyn tutkijat suorittivat vuorotellen yhä monimutkaisempia fyysisiä simulaatioita viikkojen ajan. Youngseok Kim ja Andrew Eddins, IBM Quantumin tutkijat, testasivat niitä 127 kubitin IBM Quantum Eagle -prosessorilla. UC Berkeleyn Sajant Anand yrittäisi tehdä samaa laskentaa käyttämällä huippuluokan supertietokoneita, jotka sijaitsevat Lawrence Berkeley National Labissa ja Purduen yliopistossa.
Eagle palautti tarkkoja vastauksia joka kerta. Ja simulaatioiden muuttuessa yhä monimutkaisemmiksi kvanttitietokone palautti yhä tarkempia vastauksia kuin klassiset approksimaatiomenetelmät.
IBM korostaa, etteivät tulokset tarkoita, että kvanttikoneista tulisi klassisia parempia. Niissä prosesseissa, jotka hyötyvät kvanttitilojen käytöstä, kvanttikoneista näyttää tulevan tehokkaita aiemmin ennakoitua nopeammin.
New paper from IBM and UC Berkeley shows path toward useful quantum computing
https://research.ibm.com/blog/utility-toward-useful-quantum
Tomi Engdahl says:
Frederic Lardinois / TechCrunch:
Microsoft aims to build a quantum supercomputer within 10 years, after Microsoft researchers claim to create Majorana particles for scalable and stable qubits — Microsoft today announced its roadmap for building its own quantum supercomputer, using the topological qubits the company’s researchers …
Microsoft expects to build a quantum supercomputer within 10 years
https://techcrunch.com/2023/06/21/microsoft-expects-to-build-a-quantum-supercomputer-within-10-years/
Microsoft today announced its roadmap for building its own quantum supercomputer, using the topological qubits the company’s researchers have been working on for quite a few years now. There are still plenty of intermediary milestones to be reached, but Krysta Svore, Microsoft’s VP of advanced quantum development, told us that the company believes that it will take fewer than 10 years to build a quantum supercomputer using these qubits that will be able to perform a reliable one million quantum operations per second. That’s a new measurement Microsoft is introducing as the overall industry aims to move beyond the current era of noisy intermediate-scale quantum (NISQ) computing.
“We think about our roadmap and the time to the quantum supercomputer in terms of years rather than decades,” Svore said.
Tomi Engdahl says:
Intel to start shipping a quantum processor
The 12-qubit device will go out to a few academic research labs.
https://arstechnica.com/science/2023/06/intel-to-start-shipping-a-quantum-processor/
Tomi Engdahl says:
Quantum Entanglement Shatters Einstein’s Local Causality: The Future of Computing and Cryptography
https://www.rightnes.xyz/2023/05/quantum-entanglement-shatters-einsteins.html
Tomi Engdahl says:
Fast tracking quantum-computing tech
Quantum computers are fast approaching the point where they will start benefiting society — and researchers in Japan want to get there as quickly as possible.
https://www.nature.com/articles/d42473-023-00091-y
Tomi Engdahl says:
Researchers ‘split’ phonons in step toward new type of quantum computer
https://phys.org/news/2023-06-phonons-quantum.html
Tomi Engdahl says:
Quantum Computing On A Commodore 64 In 200 Lines Of BASIC
https://hackaday.com/2023/07/04/quantum-computing-on-a-commodore-64-in-200-lines-of-basic/
The term ‘quantum computer’ gets usually tossed around in the context of hyper-advanced, state-of-the-art computing devices, but much as how a 19th century mechanical computer, a discrete computer created from individual transistors, and a human being are all computers, the important quantifier is how fast and accurate the system is at the task, whether classical or quantum computing. This is demonstrated succinctly by [Davide ‘dakk’ Gessa] with 200 lines of BASIC code on a Commodore 64 (GitHub), implementing a range of quantum gates.
Much like a transistor in classical computing, the qubit forms the core of quantum computing, and we have known for a long time that a qubit can be simulated, even on something as mundane as an 8-bit MPU. Ergo [Davide]’s simulations of various quantum gates on a C64, ranging from Pauli-X, Pauli-Y, Pauli-Z, Hadamard, CNOT and SWAP, all using a two-qubit system running on a system that first saw the light of day in the early 1980s.
Quantum Computing on a Commodore 64 in 200 Lines of BASIC
https://medium.com/@dakk/quantum-computing-on-a-commodore-64-in-200-lines-of-basic-eda7658b32a4
The Commodore Quantum Simulator
The Commodore Quantum Simulator is a BASIC program capable of simulating various quantum gate operations on a two-qubit system. With this system, you can simulate operations such as Pauli-X, Pauli-Y, Pauli-Z, Hadamard, CNOT, and he SWAP gate.
Upon launching the simulator, it defaults to the initial state of |00>. The simulator then prompts for a sequence of quantum gates to be applied. For instance, inputting “H0CX” instructs the simulator to apply the Hadamard gate on qubit 0, followed by a CNOT gate operation. Subsequent to this state manipulation, the simulator proceeds to run a defined number of iterations, simulating the quantum state’s evolution with each step. At the end of this process, it then provides the user with the distribution of quantum states, offering a tangible insight into the fascinating probabilistic nature of quantum mechanics.
Tomi Engdahl says:
https://www.engadget.com/sonys-new-spatial-sound-system-is-actually-portable-170008725.html
Tomi Engdahl says:
Quantum computer built by Google can instantly execute a task that would normally take 47 years
https://www.earth.com/news/quantum-computer-can-instantly-execute-a-task-that-would-normally-take-47-years/
Tomi Engdahl says:
Kvanttitietokoneet tulevat tavallisten kuluttajien käyttöön ja kehitys räjähtää eksponentiaalisesti 5–10 vuoden sisällä, sanoo suomalaisen kvanttiyhtiö IQM:n innovaatiojohtaja
Kysyimme suomalaisen IQM:n kvantti-innovaatiojohtaja Inés de Vegalta, milloin näemme kvanttiläppäreitä ja -puhelimia.
https://www.tekniikkatalous.fi/uutiset/kvanttitietokoneet-tulevat-tavallisten-kuluttajien-kayttoon-ja-kehitys-rajahtaa-eksponentiaalisesti-510-vuoden-sisalla-sanoo-suomalaisen-kvanttiyhtio-iqmn-innovaatiojohtaja/96ef9544-58c0-441c-8eb8-b0569ec16601
Suomalainen kvanttiteknologian yritys IQM Group teki yli 19 miljoonan euron tappion vuonna 2022. Se ei huoleta. Vaikka kvanttitietokoneet eivät tällä hetkellä ole kaupallisesti kannattavia, uskotaan rajun muutoksen tapahtuvan lähiaikoina.
Tomi Engdahl says:
Rigetti launches 84qubit single chip quantum processor
https://www.eenewseurope.com/en/rigetti-launches-84qubit-single-chip-quantum-processor/
Rigetti has launched its fourth-generation architecture with a single chip 84qubit quantum processor that can scale to larger systems.
Rigetti’s Ankaa-1 quantum processor uses a new two-qubit gate architecture with tunable couplers to provide higher performance and can easily scale to larger multi-chip devices.
“The QPU is now internally deployed and marks a major leap forward for our technology, customers and the field of superconducting qubits,”
Tomi Engdahl says:
Kvanttitietokoneen teho kasvaa ja uhkaa tietoturvaa – Pian sillä voi murtautua valtioiden kriittiseen infrastruktuuriin
Kun kvanttitietokoneen teho kasvaa tarpeeksi suureksi, se kykenee peittoamaan nykyiset salausmenetelmät. Tämä on vain ajan kysymys.
https://www.tekniikkatalous.fi/uutiset/kvanttitietokoneen-teho-kasvaa-ja-uhkaa-tietoturvaa-pian-silla-voi-murtautua-valtioiden-kriittiseen-infrastruktuuriin/57922bda-f9d2-4c88-8ccd-d9af6e9b187d
Tomi Engdahl says:
Quantum computing is the next revolution
Theoretical physics professor Michio Kaku outlines the evolution of computers from analog to digital and introduces quantum computers as the next frontier.
Tomi Engdahl says:
https://etn.fi/index.php/13-news/15262-vtt-n-saehkoejaeaehdytys-voi-kutistaa-kvanttitietokoneen
Tomi Engdahl says:
https://www.uusiteknologia.fi/2023/08/30/pienia-kvanttitietokoneita-uudella-jaahdytystekniikalla/
Tomi Engdahl says:
https://etn.fi/index.php/13-news/15318-laitetaanko-mukaan-suomalainen-kvanttitietokone
Tomi Engdahl says:
https://etn.fi/index.php/13-news/15318-laitetaanko-mukaan-suomalainen-kvanttitietokone
Kvanttilaskenta on se tekniikka, jolla ratkaistaan tulevaisuuden nykytietokoneille mahdottomia ongelmia. Mutta voisiko kvanttikoneen ostaa itselleen? Voi, espoolainen IQM on esitellyt pienikokoisen IQM Spark -koneen, jonka saa omakseen alle miljoonalla eurolla.
IQM on jo julkistanut valmsitaneensa Espoossa sekä 5, 20 että 54 kubitin kvanttiprosessoreita. Suuremmat järjestelmät on toimitettu VTT:lle sekä Leibnizin superlaskentakeskukseen Saksaan. Sparkissa on 5 kubitin kvanttiprosessori.
Tomi Engdahl says:
Fujitsu ja RIKEN julkistivat 64 kubitin kvanttitietokoneen
https://etn.fi/index.php/13-news/15401-fujitsu-ja-riken-julkistivat-64-kubitin-kvanttitietokoneen
Fujitsu ja japanilainen tutkimuskeskus RIKEN kertovat kehittäneensä 64 suprajohtavan kubitin kvanttitietokoneen. Alustaa tarjotaan yrityksille ja tutkimuslaitoksille, jotka tekevät yhteistä tutkimusta Fujitsun ja RIKENin kanssa.
Fujitsu ja RIKEN paljastivat lisäksi hybridi-kvanttilaskennan alusta, joka yhdistää 64 kubitin kvanttitietokoneen yhteen maailman suurimmista kvanttitietokonesimulaattoreista. Simulaattori laskee 40 kubitin voimalla.
Hybridialusta mahdollistaa kvanttikoneen kohinaisten laskentatulosten helpon vertailun kvanttisimulaattorin virheettömiin tuloksiin. Alusta auttaa kehittämään algoritmeja, joilla voidaan parantaa kvanttilaskennan tuloksia.
Fujitsun ja RIKENin pidemmän tähtäimen suunnitelmissa on kehittää 1000 kubitin kvanttitietokone. Hyvin laajasti ajatellaan, että yli tuhannen kubitin kvanttikoneet ovat sellaisia, joilla päästään ns. kvanttiherruuteen eli joitakin matemaattisia ongelmia voidaan ratkaista perinteisiä supertietokoneita paremmin.
Tomi Engdahl says:
https://www.uusiteknologia.fi/2023/10/04/kvanttiteknologian-kehittamiseen-avoin-tutkimusymparisto/
Tomi Engdahl says:
https://etn.fi/index.php/13-news/15401-fujitsu-ja-riken-julkistivat-64-kubitin-kvanttitietokoneen
Tomi Engdahl says:
Suomen teknologiakenttä, valtamediat ja jopa presidentti intoilivat viime viikolla maan toisen kvanttitietokoneen julkaisusta. Mutta miksi? Tehoiltaan kone vastaa perusläppäriä, samanlaista jolla tämäkin Facebook-päivitys on kirjoitettu.
Julkaistu kvanttitietokone edustaa potentiaalia. Kone tarjoaa tutkijoille ”harjoitusvastuksen” eli tutkijat voivat sen avulla opetella käyttämään kehitteillä olevia, suurempia kvanttitietokoneita.
Tulevaisuuden kvanttitietokoneet voivat esimerkiksi
- kehittää uusia materiaaleja resurssipulaan tai lääketeollisuuteen,
- tehdä monimutkaisia materiaalien molekyylisimulaatioita,
- tehdä laskentansa nopeammin ja energiasäästeliäämmin kuin tavalliset tietokoneet ja näin ollen
- tuoda taloudellista hyötyä sekä säästöä ympäristön näkökulmasta.
https://www.tek.fi/fi/uutiset-blogit/miljoonien-kvanttitietokone-vastaa-tehoiltaan-peruslapparia
Tomi Engdahl says:
Ensimmäinen yli tuhannen kubitin kvanttitietokone
https://etn.fi/index.php/13-news/15478-ensimmaeinen-yli-tuhannen-kubitin-kvanttitietokone
Atom Computing kertoo testanneensa sisäisesti 1180 kubitin kvanttitietokonetta. Kyse on merkittävästä hypystä eteenpäin startupille, joka aiemmin oli rakentanut vain yhden 100 kubitin järjestelmän.
Atom Computingin kvanttilaskenta perustuu neutraalien atomien käyttöön kubitteina. Tämä on uusi, suosiotaan kasvattava lähestymistapa kvanttilaskentaan, siinä pystytään esimerkiksi suprajohdepohjaisia järjestelmiä nopeammin skaalaamaan suurempiin kubittimääriin. Tämä nopeuttaa ns. kvanttiedun saavuttamista, jolla tarkoitetaan kvanttikonetta, joka pystyy laskemaan ongelmia klassisia tietokoneita nopeammin.
Esimerkiksi DARPA (Defence Advanced Research Projects Agency) on valinnut Atom Computingin kehittämään seuraavan sukupolven järjestelmää US2QC-ohjelman (Underexplored Systems for Utility-Scale Quantum Computing) kautta.
Tomi Engdahl says:
Ensimmäinen yli tuhannen kubitin kvanttitietokone
https://etn.fi/index.php/13-news/15478-ensimmaeinen-yli-tuhannen-kubitin-kvanttitietokone
Atom Computing kertoo testanneensa sisäisesti 1180 kubitin kvanttitietokonetta. Kyse on merkittävästä hypystä eteenpäin startupille, joka aiemmin oli rakentanut vain yhden 100 kubitin järjestelmän.
Atom Computingin kvanttilaskenta perustuu neutraalien atomien käyttöön kubitteina. Tämä on uusi, suosiotaan kasvattava lähestymistapa kvanttilaskentaan, siinä pystytään esimerkiksi suprajohdepohjaisia järjestelmiä nopeammin skaalaamaan suurempiin kubittimääriin. Tämä nopeuttaa ns. kvanttiedun saavuttamista, jolla tarkoitetaan kvanttikonetta, joka pystyy laskemaan ongelmia klassisia tietokoneita nopeammin.
Tomi Engdahl says:
Thirty Years Later, a Speed Boost for Quantum Factoring
By
BEN BRUBAKER
October 17, 2023
https://www.quantamagazine.org/thirty-years-later-a-speed-boost-for-quantum-factoring-20231017/
Shor’s algorithm will enable future quantum computers to factor large numbers quickly, undermining many online security protocols. Now a researcher has shown how to do it even faster.
Tomi Engdahl says:
UNELMA KVANTTITIETOKONEESTA, JOSTA OLISI KÄYTÄNNÖN HYÖTYÄ
VÄLITAVOITE
Suomen toinen kvanttitietokone on valmis, ja tämä juttu kertoo, miten se tehtiin. Mutta se on vain väliaskel ja ajetaan pian alas vielä isomman koneen tieltä. Ja senkin jälkeen tehdään vielä ainakin yksi.
https://tekniikanmaailma.fi/lehti/19a-2023/unelma-kvanttitietokoneesta-josta-olisi-kaytannon-hyotya/
Tomi Engdahl says:
Atom Computing is the first to announce a 1,000+ qubit quantum computer
A startup company has upped its qubit count by an order of magnitude in two years.
https://arstechnica.com/science/2023/10/atom-computing-is-the-first-to-announce-a-1000-qubit-quantum-computer/?utm_source=facebook&utm_medium=social&utm_social-type=owned&utm_brand=ars&fbclid=IwAR3_l9knQp8HXox_ezGbK1isqWM6E55jFVF7FraNvqyj-qtp1qoO91vE4ak
Today, a startup called Atom Computing announced that it has been doing internal testing of a 1,180 qubit quantum computer and will be making it available to customers next year. The system represents a major step forward for the company, which had only built one prior system based on neutral atom qubits—a system that operated using only 100 qubits.
The error rate for individual qubit operations is high enough that it won’t be possible to run an algorithm that relies on the full qubit count without it failing due to an error. But it does back up the company’s claims that its technology can scale rapidly and provides a testbed for work on quantum error correction. And, for smaller algorithms, the company says it’ll simply run multiple instances in parallel to boost the chance of returning the right answer.
Tomi Engdahl says:
https://www.uusiteknologia.fi/2023/11/06/kvanttikone-3000-euron-kuukausihinnalla/?utm_campaign=kvanttikone-3000-euron-kuukausihinnalla&utm_medium=rss&utm_source=rss&fbclid=IwAR1zoayU4aBN4EiNHrCRPIl6nfCGqAZUn9dNw1LQe3hXdT7b2urLFjNDjnE
Tomi Engdahl says:
https://www.uusiteknologia.fi/2023/11/09/runsaan-vuoden-sisaan-150-kubitin-kvanttitietokone/
Tomi Engdahl says:
https://www.uusiteknologia.fi/2023/11/15/suomalaisyritys-hyodyntaa-nvidian-kvanttitietokonealustaa/
Suomalainen kvanttitietokoneita kehittävä IQM ottaa käyttöön yhteistyössä amerikkalaisen Nvisian avoimen lähdekoodin Cuda Quantum -ohjelmistoalustan. Sen avulla voidaan yhdistää kvanttilaskentaa ja perinteistä laskentaa sovelluskehityksessä.
Uuden yhteistyön ansiosta käyttäjät pystyvät hyödyntämään IQM:n kvanttilaskentayksiköitä ohjelmoimaan perinteisen laskennan ja kvanttilaskennan yhdistäviä sovelluksia avoimen lähdekoodin Nvidia CUDA Quantum -alustalla. Osana yhteistyötä IQM:n kvanttilaskentayksiköiden käyttäjät yrityksissä ja tutkimuslaitoksissa voivat ohjelmoida ja kehittää NVIDIA CUDA Quantumilla seuraavan sukupolven sovelluksia kvanttilaskennan ja perinteisen laskennan hybridinä.
Yhteistyön tavoitteena on kiihdyttää kvanttilaskennan kehitystä ja hyödyntämistä erilaisissa sovelluksissa ja edistää innovaatioita, yhteistyötä ja mahdollisia läpimurtoja tieteessä ja liiketoiminnassa.
Tomi Engdahl says:
Atom Computing is the first to announce a 1,000+ qubit quantum computer
A startup company has upped its qubit count by an order of magnitude in two years.
https://arstechnica.com/science/2023/10/atom-computing-is-the-first-to-announce-a-1000-qubit-quantum-computer/
Tomi Engdahl says:
A quantum engine in the BEC–BCS crossover
https://www.nature.com/articles/s41586-023-06469-8
Tomi Engdahl says:
IonQ Unveils Rack-Mounted Quantum Computers The devices will be plug and play for any data center
https://spectrum.ieee.org/quantum-computing-2665781251
Tomi Engdahl says:
Hallitus satsaa kvanttitietokoneisiin – kvanttilaskenta voi muuttaa sen, miten shoppailemme, mitä syömme ja miten lääkitsemme itseämme
Kvanttilaskenta on apuväline, mutta sen sovellukset voivat olla mittavat, kertovat Teknologian tutkimuskeskus VTT:n asiantuntijat.
https://yle.fi/a/74-20051915
Tomi Engdahl says:
Imperfect Clocks Limit Quantum Computers Timing issues could produce critical problems as quantum computers get bigger
https://spectrum.ieee.org/quantum-computing-timing-limits
Tomi Engdahl says:
https://www.uusiteknologia.fi/2023/11/15/suomalaisyritys-hyodyntaa-nvidian-kvanttitietokonealustaa/
Tomi Engdahl says:
Beating the break-even point with a discrete-variable-encoded logical qubit
https://www.nature.com/nature-index/article/10.1038/s41586-023-05784-4#highlight
Tomi Engdahl says:
”Kvanttitietokoneet ovat tulossa, ja ne tulevat yllättämään meidät kaikki monella tapaa”
12.9.202306:01
Suomalaisen IQM:n innovaatiojohtaja ei usko kvanttitietokoneiden pienenevän taskukokoisiksi.
https://www.mikrobitti.fi/uutiset/kvanttitietokoneet-ovat-tulossa-ja-ne-tulevat-yllattamaan-meidat-kaikki-monella-tapaa/dc27956c-b842-4123-875f-09bb5dc0f1fd
Tomi Engdahl says:
How Tiny Schrödinger’s Cats Could Upend Quantum Again French startup Alice & Bob tests new breed of qubit—with Amazon hot on its heels
https://spectrum.ieee.org/schrodingers-cat-qubit
Tomi Engdahl says:
Electric Cooling Could Shrink Quantum Computers Vacuum-tube effect might simplify cryogenic chambers
https://spectrum.ieee.org/cryogenics
Tomi Engdahl says:
https://www.uusiteknologia.fi/2023/08/30/pienia-kvanttitietokoneita-uudella-jaahdytystekniikalla/?utm_campaign=pienia-kvanttitietokoneita-uudella-jaahdytystekniikalla&utm_medium=rss&utm_source=rss&fbclid=IwAR3U1xdhabEf8p0yrR2CPA6VswcTpuwzmv4tqJCePOQXsPxy2tnjUWc0In8
Tomi Engdahl says:
IBM Says It’s Made a Big Breakthrough in Quantum Computing
“We’re entering this phase of quantum computing that I call… the era of utility.”
https://futurism.com/ibm-breakthrough-quantum-computing
Scientists at IBM say they’ve developed a method to manage the unreliability inherent in quantum processors, possibly providing a long-awaited breakthrough toward making quantum computers as practical as conventional ones — or even moreso.
The advancement, detailed in a study published in the journal Nature, comes nearly four years after Google eagerly declared “quantum supremacy” when its scientists claimed they demonstrated that their quantum computer could outperform a classical one.
Tomi Engdahl says:
A scientist explains an approaching milestone marking the arrival of quantum computers
https://phys.org/news/2023-11-scientist-approaching-milestone-quantum.html
Tomi Engdahl says:
https://etn.fi/index.php/13-news/15514-vttn-viiden-kubitin-kvanttikone-yritysten-kaeyttoeoen
Tomi Engdahl says:
Alibaba shuts down quantum lab, donates it to university
Three guesses where DAMO plans to focus research from now on. Yep, you guessed it…AI
https://www.theregister.com/2023/11/27/alibaba_closes_quantum_lab_donates/
China’s cloud and e-commerce giant Alibaba has shut down its quantum computing laboratory and laid off a number of researchers in what appears to be a bid to cut costs.
The move comes just weeks after the company cancelled the planned IPO of its cloud division.
Alibaba, one of the largest companies in China, has effectively divested itself of the quantum computing laboratory. According to reports, its DAMO Academy research division has donated the lab and all of its equipment to Zhejiang University in Hangzhou.
Tomi Engdahl says:
Limits for quantum computers: Perfect clocks are impossible, research finds
https://phys.org/news/2023-11-limits-quantum-clocks-impossible.html
Tomi Engdahl says:
Quantum Advantage: A Physicist Explains The Future of Computers
https://www.sciencealert.com/quantum-advantage-a-physicist-explains-the-future-of-computers
Quantum advantage is the milestone the field of quantum computing is fervently working toward, where a quantum computer can solve problems that are beyond the reach of the most powerful non-quantum, or classical, computers.
Tomi Engdahl says:
IBM has unveiled the first quantum computer with more than 1,000 qubits — the equivalent of the digital bits in an ordinary computer
IBM releases first-ever 1,000-qubit quantum chip
https://www.nature.com/articles/d41586-023-03854-1?utm_medium=Social&utm_campaign=nature&utm_source=Facebook&fbclid=IwAR3gi5-T8Y2ThRUveORTuyzQ1zKUCppjhGjBGjlZaiartMuuAd6Acc_ZeJE#Echobox=1701712373-1
The company announces its latest huge chip — but will now focus on developing smaller chips with a fresh approach to ‘error correction’.
IBM has unveiled the first quantum computer with more than 1,000 qubits — the equivalent of the digital bits in an ordinary computer. But the company says it will now shift gears and focus on making its machines more error-resistant rather than larger.
For years, IBM has been following a quantum-computing road map that roughly doubled the number of qubits every year. The chip unveiled on 4 December, called Condor, has 1,121 superconducting qubits arranged in a honeycomb pattern. It follows on from its other record-setting, bird-named machines, including a 127-qubit chip in 2021 and a 433-qubit one last year.