One of my main research directions in the last decade is quantum information theory and quantum computers. (See this post and this one.) It is therefore a pleasure to report and give many links on the massive efforts carried out these days in these directions and the great enthusiasm and hope these efforts carry.

**Updates:** I will try to update this post by adding new items at the end (and some important older items that I forgot to include). Update 1, April-May 2017, posted May 24, 2017.

## Europe quantum flagship

European Commission will launch €1 billion quantum technologies flagship; The full quantum manifesto;

## An article in the Economist

A general article about quantum technologies and computing in the Economist.

## An article in “Nature”

“Nature” article Quantum computers ready to leap out of the lab in 2017. It is mainly on Google, Microsoft, and Monroe’s lab mentioning also IBM, Rigetti and Quantum Circuits (a new startup by the Yale group). A little debate between John Martinis and Robert Schoelkopf about the target of “quantum supremacy.” Regarding topological quantum computing Leo Kouwenhoven declares that “2017 is the year of braiding,”

## For the comment section: “Quantum computers” in various languages

How to say “Quantum computers” in other languages? Hebrew: מחשבים קוונטים pronounced: maghshevim kvantim; Spanish: Computadoras cuánticas (google translate)*. *

Please contribute! For earlier efforts in this spirit see “more or less in various languages” and “When it rains it pours” in various languages. Of course, ordinary comments are welcome as well.

## Google/IBM/Microsoft and others: the race for building quantum computers.

The Race to Sell True Quantum Computers Begins Before They Really Exist, (Wired) Mainly on Google and IBM. IBM Inches Ahead of Google in Race for Quantum Computing Power, MIT Technology Review. Commercialize *quantum* technologies in five years (Nature)

IBM: IBM’s quantum cloud computer goes commercial (Nature) IBM moves from a 5-qubit quantum computer to 50-qubit commercial quantum computer in the near future. Also IBM’s first commercial quantum computer paves way to overhaul of molecular simulations (chemistry world); IBM Building First Universal Quantum Computers for Business and Science (IBM Press Release); and a PC World article.

Google: Researchers Report Milestone in Developing Quantum Computer (NYT); Quantum computing is poised to transform our lives. Meet the man leading Google’s charge (Wired, and interview with John Martinis)

Microsoft: Microsoft Makes Bet Quantum Computing Is Next Breakthrough (NYT) ; Inside Microsoft’s quest for a topological quantum computer (Nature) Microsoft doubles down on quantum computing bet. Microsoft approach is based on topological quantum computing.

Others: Scientists are close to building a quantum computer that can beat a conventional one, Science, Chris Monroe and the Startup ionQ, and various other groups and methods. Quantum Computing on Cusp, EE Times, Yale’s group and Quantum Circuits. Quantum hanky-panky (Seth Lloyd, Edge); Its much bigger than it looks ( ;

NIST: National Institute of Standards and Technology, quantum divisions. Super *quantum* simulator ‘entangles’ hundreds of ions (Science daily) *Quantum computers* may have higher ‘speed limits’ than thought (Phys.org.) A thought experiment by Stephen Jordan.

D-wave. D-wave is building large scale quantum computers with (rather noisy) superconducting qubits, and implement specific optimization algorithms. *D-Wave* quantum computers: The smart person’s guide . Quantum computer learns to ‘see’ trees Science Magazine. An article in Quanta Magazine.

List of companies involved in quantum computers. A few webpages: 1Qbit ; D-wave ; Quantum circuits (Yale group) ; Rigetti ; Monroe’s blog; Station Q (Microsoft); Google; IBM-Q;

## Quantum Error-Correcting

The key for large scale universal quantum computers is quantum error-correcting codes.

IBM to develop hardware to wipe out errors in quantum computing (New Scientists)

Error fix for long-lived qubits brings quantum computers nearer (New Scientist)

Physicists show that real-time *error correction* in *quantum* … (Phys.Org, reporting on research in South Africa)

New *Yale*-developed device lengthens the life of quantum information (Yale news)

## Quantum supremacy

A convincing demonstration of computational complexity supremacy is expected by researchers in the near future. Main approaches are using quantum circuits with around 50 qubits or via demonstration of BosonSampling with 20-30 bosons.

( NextBigFuture. )

Revealed: Google’s plan for quantum computer supremacy (New Scientist); How Widely Should We Draw The Circle? (Scott Aaronson on imminent demonstration of quantum supremacy); News release from Bristol U. ; Proto *quantum* computer inspired by Victorians gets a speed boost About BosonSampling. (New Scientist.); Massive Disruption Is Coming With Quantum Computing, Singularity Hub

## Topological quantum computing and anyons

Forging a Qubit to Rule Them All (Quanta Magazine); Inside the Knotty World of ‘Anyon’ Particles (Quanta Magazine); Why Insights of Nobel Physicists Could Revolutionize 21st-Century (Scientific Computing): Via Majorana fermions: Physicists In China Detect The *Majorana Fermion* (Asian Scientist Magazine); The discovery of *Majorana fermion* (EurekAlert);

## Simulating physics with quantum computers

Quantum computer makes first high-energy physics simulation, Nature, about the Innsbruck group.

## An article with emphasis on difficulties, bringing also my point of view.

A general article: The trouble with quantum computing by Ben Skuse, Engineering and Technology. The author expresses overall an optimistic bottom line, but explains the difficulties and also brings my point of view.

Here is the ending paragraph:

Much like outcomes in the quantum world itself, the future of quantum computing involves a number of unknowns, none of which we can predict. When and whether quantum supremacy and universal quantum computers can be achieved is currently up in the air, but the work of Chow, Lucas, Montanaro and even Kalai is contributing to tilting the odds in its favour. And each ‘step closer’ is only that. The road to quantum computing stretches off into the distance and may have no end.

## Post quantum cryptography

Quantum computers will allow breaking most of current cryptosystems. This leads to much effort for “post-quantum cryptography,” namely developing cryptographic methods immune to quantum attacks.

HACKING, CRYPTOGRAPHY, AND THE COUNTDOWN TO QUANTUM COMPUTING (New Yorker)

Post-Quantum Cryptography: NIST’s Plan for the Future (U.S. National Institute of Standards and Technology (NIST)) *NIST* requests ideas for crypto that can survive *quantum* computers (The Register)

An article regarding RSA conference. (bank info security.); An article in Quanta Magazine

## Quantum key distribution (QKD)

EXCLUSIVE – Mathematically provable communication security and other applications of Quantum Key Distribution (OpenGovAsia); Developing a quantum key system to make mobile transactions safer (New Atlas); China’s 2000-km Quantum Link Is Almost Complete (IEEE Spectrum); SK Telecom, Nokia team on quantum cryptography (Telecom Asia); Chinese Physicists Achieve Record-Breaking Quantum Cryptography Breakthrough (Hecked).

## Related quantum science and technology

Atomic clocks: *Physicists* Find That as Clocks Get More Precise, Time Gets More, ScienceAlert; JILA atomic clock mimics long-sought synthetic magnetic state; Time crystals: *Time Crystals* Are Real, But That Doesn’t Mean Time Is Crystallized (Forbes); Entanglement and theoretical physics: The quantum source of space-time (Nature); The equation that could transform physics: Researchers say ER=EPR … (Daily mail). Quantum biology: Can *Quantum Physics* Explain Consciousness? (The Atlantic) Are we ready for quantum biology?, New Scientist; A New Spin on the Quantum Brain, Quanta Magazine; quantum effects in biological systems (a conference at IIAS).

## Other players, U.S. China, Russia, U. K., France, Japan, Australia, Canada, Austria, Switzerland, Germany, Netherlands, Sweden, Denmark, Italy, Spain, Poland, Israel, Brazil, Korea, Finland, … and further links.

U.S. report : ADVANCING QUANTUM INFORMATION SCIENCE: NATIONAL CHALLENGES AND OPPORTUNITIES

Europe’s leap into the *quantum* computing arms race (Financial Times)

U.K. The future is quantum: solution to the world’s critical problems; Quantum computers will solve problems that conventional computers never could. (Financial times)

China: Chinese satellite is one giant step for the quantum internet (Nature); 5 reasons why *China* will rule tech, 2017 edition (computerworld. quantum computers is one of the items). *China’s* push to become a tech superpower triggers alarms abroad (Financial times, quantum computing emphasized ); *China* can help drive global progress in *quantum computing* (ZD net)

Singapore: CEO conversations: *Quantum computing*, leadership, and … (Enterprise Innovation).

Australia: Sydney University’s David Reilly part of Microsoft’s billion-dollar push, The Sydney Morning Heral; Quantum computing is the next space race says Telstras Hugh Bradlow (Financial Review, Australia).

Canada: Canada leads in the race to create *Quantum* Valley, The Globe and Mail; Canada’s PM on quantum computing.

Israel: The future is here: the quantum computer revolution (in Hebrew); Calcalist article (Hebrew); Israeli scientists discovery towards QC (in Hebrew Haaretz) ; Quantum computing breakthrough: Israeli scientists invent cannon for entangled photon clusters (International Business Times).

____________________________________________________________________________

## Update 1: April/May 2017.

## IBM moves from 5 to 17 qubits; Five-Bosons Five-modes BosonSampling experiments; Similations; Cooling: Commonwealth Bank; and quantum thermodynamics.

Links to further items (mainly from the media) on quantum technology: April May 2017

Supercomputer Simulation Offers Peek at the Future of *Quantum Computers*. MIT Technology review.

QUANTUM COMPUTING IS GOING COMMERCIAL WITH THE POTENTIAL TO DISRUPT EVERYTHING (Newsweek)

“Indistinguishable Photons” Could Unleash *Quantum Computing* (Inverse)

*Quantum computing* the new frontier for banking (Australia) “Commonwealth Bank’s announcement that it has developed a quantum computer simulator takes the bank a step closer to its ambition of building a small, 10-qubit (quantum bits) machine by 2020.”

Microsoft’s cool *quantum computing* plan embraces cryogenic memory (PCworld)

Finland: Refrigerator for *quantum computers* discovered Aalto University (EurekAlert), Nanofridge could keep *quantum computers* cool enough to calculate New Scientist. China: World’s First *Quantum Computer* Is Here (Wall street Pit) China Has Built The World’s 1st *Quantum Computer*, And It’s 24000 (India Times)

Google’s New Chip Is a Stepping Stone to *Quantum Computing* (MIT Technology Review)

Microsoft’s cool *quantum computing* plan embraces cryogenic memory (PC World)

Artificial Intelligence (AI) and *Quantum Computing* (Nanalyze) (Various cool stuff) Is Bitcoin at Risk as Google and IBM Aim for 50-Qubit *Quantum* … (Nigeria Today)

China team achieve 5-bosons 5-modes BosonSampling. High-efficiency multiphoton boson sampling : (Nature photonics); Blogpost on the Shtetl. However, UK team indicates over 50 photons needed for Boson Sampling quantum supremacy. (The next Big Future).

Quanta: The quantum thermodynamics revolution; Why Quantum Computers Might Not Break cryptography;

IBM: Moving from 5 qubits to 16/17 qubits: IBM reveals prototype of its first commercial quantum computer processor (New Atlas); *IBM* makes a leap in *quantum computing* power; *IBM’s quantum computer* gets powerful upgrade (Reuters); and ComputerWord New Zealand; The Inquirer; IBM: Αποκαλυπτήρια πρωτότυπου κβαντικού επεξεργαστή για εμπορική χρήση; MIT Technology Review;

French: Ordinateur quantique

Gil, you know what I think about this: irresponsible hype with a quasi-scientific appearance.

Dear Michel, I expressed my view many times and I decided to be nice this time 🙂 . I prefer the word “hope” on “hype,” and I do think that this is a scientific question that the “race” and immense efforts will shed light on.

Portuguese: Computadores quânticos

🙂

Japanese: 量子コンピュータ

The “量子” part refers to quantum (the first kanji is related to measurements and the second one to a particular state of an object, a diminutive for some cases. So, quantum is the measure of the small things. The “コンピュータ” part is just the katakana writing for “conpiu-ta” (yep, this is “computer”).

The reading for 量子コンピュータ is りょうしコンピュータ, which is something like: “rioshi conpiuta”. It is not possible for me to put the pronunciation details here, though.

Reblogged this on Mobius Diary.

German: Quantencomputer

😀 😮 ❗ lol @ Dyakonov, found your papers years ago & very much enjoy them, & think you have many great points, but, looks like large paradigm shift in play, & sorry, looks like QC skeptics are on the losing side now. see also “gartner hype curve” for more on expectation vs reality.

https://en.wikipedia.org/wiki/Hype_cycle

lets note however that Kalai can actually be regarded as in the skeptic column to a large degree wrt noise difficulties. which looks like the last major debate: how much can experimental QM reflect theory wrt noise considerations? seems like comprehensive theory of thermodynamic entropy wrt QM computing may still be yet to be written…

From FB: Ríomhairí satis! (Irish. Thanks to Jonathan P. Dowling); Квантовый компьютер (Russian), pronounced “Kvantovyj kompjuter” (thanks to Nikolai Mnev).

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I will try to update this post by adding new items at the end (and some important older items that I forgot to include). First Update for April-May 2017, posted May 24, 2017

I don’t see how the threshold theorem has anything to do with quantum computers, if you realize, like a competent mathematician or scientist, that the uncertainty principle implies all of quantum mechanics. That means under a standard (or rehashed QBism) view, we must admit that the situation could simply reduce to analog computational limits. It’s an INTERPRETATION of the physics that talks about sub-planck “negative probabilities” in pseudo-CLASSICAL distributions. There is NO PROOF IN SCIENCE for these views. NONE! They are stated dogmatically but underlie the actual differences of opinion. The lack of clear language on this point is quite astounding. A cat is not “smeared” over a distribution but the probability is. It might help to eliminate the regressive primary narcissism that eliminates the distinction between the subjective and objective. Bayes isn’t exactly new.