Quantum Computing 2020 Update

Quantum computing review, including Google’s quantum supremacy claims, quantum cloud developments (QCaaS), trapped ion quantum computing, and a brief look at Python quantum coding!

More information on quantum computing can be found on my web page at https://www.explainingcomputers.com/quantum.html

Specific references for the content included in this video are as follows:


John Preskill’s 2012 paper in which he proposed the idea of quantum supremacy: https://arxiv.org/pdf/1203.5813.pdf

Google’s October 2019 paper in Nature in which it claimed that it had achieved quantum supremacy: https://www.nature.com/articles/s41586-019-1666-5

IBM’s October 2019 response to Google’s quantum supremacy claim: https://www.ibm.com/blogs/research/2019/10/on-quantum-supremacy/


IBM Quantum Experience: https://quantum-computing.ibm.com/

Alibaba & CAS March 2018 announcement of their cloud computing services: https://www.alibabacloud.com/press-room/alibaba-cloud-and-cas-launch-one-of-the-worlds-most

The CAS / Alibaba Quantum Computing Cloud: http://quantumcomputer.ac.cn/

D-Wave Systems October 2018 announcement of its LEAP cloud services: https://www.dwavesys.com/press-releases/d-wave-launches-leap-first-real-time-quantum-application-environment

Rigetti Quantum Cloud Services: https://qcs.rigetti.com/

Amazon December 2019 quantum cloud services announcement: https://aws.amazon.com/blogs/aws/amazon-braket-get-started-with-quantum-computing/

Amazon Bracket: https://aws.amazon.com/braket/

Amazon Quantum Solutions Lab:

Microsoft’s May 2020 announcement of Azure Quantum:

Microsoft Azure Quantum:


University of Oxford “Introduction to Ion Trap Quantum Computing”: https://www2.physics.ox.ac.uk/research/ion-trap-quantum-computing-group/intro-to-ion-trap-qc#

IonQ funding announcement, October 2019:

IonQ technology webpage: https://ionq.com/technology [TOP RESOURCE]

Honeywell June 2020 announcement – “The Most Powerful Quantum Computer is Here”: https://www.honeywell.com/en-us/newsroom/news/2020/06/the-worlds-highest-performing-quantum-computer-is-here

Honeywell Quantum Solutions:

ZNet article on Honeywell quantum computing and JP Morgan Chase: https://www.zdnet.com/article/honeywell-claims-to-have-worlds-highest-performing-quantum-computer-according-to-ibms-benchmark/


IBM Quantum Computing: https://www.ibm.com/quantum-computing/

IBM Qiskit Python coding example “Estimating Pi Using Quantum Phase Estimation Algorithm”: https://qiskit.org/textbook/ch-demos/piday-code.html

More videos on computing and related topics can be found at:

You may also like my ExplainingTheFuture channel at: http://www.youtube.com/explainingthefuture

00:00 Introduction
00:41 Quantum basics
01:56 Quantum supremacy
05:19 Quantum cloud computing
08:10 Trapped ions
09:53 Quantum coding
11:09 Getting there!

#Quantum #QuantumComputing #ExplainingComputers


  1. Annunaki581 on December 14, 2020 at 9:51 pm


  2. keith henry on December 14, 2020 at 9:51 pm

    They have achieved it already technology is here already but they are slowly drip feeding us if got into the wrong hands there can be some problems that we are not ready yet to face

  3. Christobal Gonzalez on December 14, 2020 at 9:53 pm

    If you wantc o see the origins of A.I. take mushrooms and meet the machine elfs.

  4. Bruno Miranda on December 14, 2020 at 9:54 pm

    Schrödinger’s cat saw this video. And didn’t!

  5. Shredda on December 14, 2020 at 9:56 pm

    are you old or young? i can’t tell

  6. QMG The Quantum Mechanics Guy on December 14, 2020 at 9:56 pm

    At least, quantum computing allows to confirm classic quantum experiments "at home".

    Here is my computerized version of the Delayed-choice quantum eraser experiment using an IBM quantum computer:


  7. Count Hermaeus on December 14, 2020 at 9:57 pm

    Hopefully we will be able to use them to figure out what material the centre of neutron stars are formed from or how to increase the efficiency of current Fusion Reactors. That would be cool.

  8. John Weiss on December 14, 2020 at 9:58 pm

    2:19 What’s "pure play"?

  9. Mayank Bhaisora on December 14, 2020 at 9:59 pm

    I am worried about average people like me. Not in my lifetime probably but some day someone will sleep hungry only because the quantum computers and AI will take over most of the jobs. I appreciate the Science and technological enhancements. If it happens in my lifetime, i would go back to my village, grow food there, i will atleast find an excuse to experience the nature more closely

  10. Fahad Alharbi on December 14, 2020 at 9:59 pm

    When someone can call quantum computing a stupid dream at this stage?! .. There zero results after 10 of billions spent on this.. No usfull system, no real stable quantum computer… Nothing to show for all these billions while transistor still moving to smaller and better designs..

  11. Tmulligan on December 14, 2020 at 10:01 pm

    I do not have the education, technology nor resources to make something like this happen, but will someone take quantum computing and merge it with blockchain-crypto to make the most dominate currency the world has ever seen? And when you do this, let me know so I can buy in early and get the pay out for the idea. Thanks! 🙂

  12. Ciprian Petre on December 14, 2020 at 10:01 pm

    I dont know exacly how many people actually realize what this quantum computing means…. unlimited energy and time travel is just 20-30 years away ( obvsly not for good purposes)

  13. David S. O'Connor on December 14, 2020 at 10:02 pm

    Quinton Cloud developed in China …. seriously! When will we ever learn.

  14. Sophie Barnett on December 14, 2020 at 10:02 pm

    My 8 year old daughter is sat here fascinated with this video! Beats Peppa Pig 💪🏼 keep up the good work! 😉

  15. Brock Roberts on December 14, 2020 at 10:02 pm

    Yet another explanation of quantum computing that leaves one wanting. Tristate bits. Yeah, got it. At least in classical I can find explanation of how a set of normal bit can be encoded with information. Every explanation of quantum bits stops with the physical property of the qbit. Absolutely no explanation of how information is encoded or derived from them. Sad.

  16. Pete Turner on December 14, 2020 at 10:06 pm

    IBM have disputed the 10,000 yrs & said one of their computers would have taken several days….but no mention of this? Do you blindly accept everything your told?? 🙁

  17. Spiritual Anarchist on December 14, 2020 at 10:07 pm

    It’s still sounds like rocket tree surgery science to me . I still don’t understand if Quantum computing could be used already by , for example the military, but won’t be available for the masses yet , or if it’s is more theoretical and still could reach a death end .

  18. Joshua Cornelius on December 14, 2020 at 10:08 pm

    Lol..all this time and effort to just to discover what Everett knew decades ago… The wave function does not collapse. Everything is always in superposition, and so no usefulness can be extracted from sampling random quantum states….. Unless you need a billion dollar random number generator 🤪.

  19. William Hill on December 14, 2020 at 10:08 pm

    If transistor sizes are .875 the actual atoms will be smaller

  20. Make Money Now on December 14, 2020 at 10:09 pm

    Really like your videos!

  21. John Weiss on December 14, 2020 at 10:10 pm

    5:05 Since when is "practical application" important in foundational technology development? The point of a demonstration is to show computational capability. When a math student does problems on a math examination, it’s not important if those specific problems have concrete real-world applications– what’s important is the demonstration of computational capability.

  22. Cam Noel on December 14, 2020 at 10:11 pm

    Scientists : Explain That Quantum Computing Goes Beyond The Scopes Of A Digital Computer
    IBM : Creates An App For Anyone To Download & Play With A Quantum Computer On Their Basic Digital Computer For Personal Use

  23. NASA limbu on December 14, 2020 at 10:12 pm

    Kicha =quantum
    Sur ma=Inteal

  24. 1421ZH on December 14, 2020 at 10:14 pm

    How does China Quantum computing using single photon and not atom?

  25. Brian janssens on December 14, 2020 at 10:15 pm

    Quantum computers is so confusing man, even though i watch these video’s. I only know the parts that Kurzgesagt explained, so thats all i need to know i guess.

  26. Hoodoo Operator. on December 14, 2020 at 10:15 pm

    Hold on… They’re using Atoms for Quantum computing? That’s a bit of a gyp, no? Quantum implies sub-atomic and an Ion is not sub-atomic.

  27. Craig Goodall on December 14, 2020 at 10:18 pm

    I replied and kept stum while replying quietly?

  28. Sgt. Giddyup Carruthers on December 14, 2020 at 10:18 pm

    To this day I cannot say that I understand quantum computation to a practical extent. I am still of the opinion "classical computers" and digital circuits therein have a lot of unreached potential through software and even further hardware innovation.

  29. Polyhedron Learning Media, Inc. on December 14, 2020 at 10:18 pm

    I still don’t get it. A bit has 2 possible values, a qubit has 3 possible values. That’s all anybody talks about when discussing the differences between the two types of computers. But what does that mean? Why is 3 so much better than 2? At most, it should be 1/3 faster, shouldn’t it? What is it about that extra possble value that makes quantum computers orders of magnitude faster?

  30. Frances Hicks on December 14, 2020 at 10:19 pm


  31. Cam Noel on December 14, 2020 at 10:22 pm

    I Just Feel Like…. If You’re Trying To Make This Easier To Understand Why Not Just Introduce The “Superposition” As A New Number On The Quantum Computer . Like Regular Computers Real 0 & 1 & Quantum Computers Can Read 0 , 1, & 2 . 2 Could Be Where The Superposition Or Uncertainty Lies & If You Cant Grasp It Then Compare It To Dimensions Which Is An Easier Concept To Grasp .

  32. Thundewr Fox on December 14, 2020 at 10:22 pm
  33. Tom Szabo on December 14, 2020 at 10:24 pm

    So in a whole year the only development of note is new entrants that are basically just helping to hype the technology. Very promising.

  34. Level13Paladin on December 14, 2020 at 10:24 pm

    A mandlebrot set will run well on a quantum computer.

  35. James Samples on December 14, 2020 at 10:27 pm

    Awesome video! I also appreciate all the helpful links!!!

  36. David Lowe on December 14, 2020 at 10:27 pm

    Can I shamelessly plug my quantum computing discussion board? It’s free, not for profit, part of my PhD…

  37. Claudio Daniel on December 14, 2020 at 10:29 pm

    pls could you stop repesting the basics off quantuum computing, everybody here already know that

  38. Beelzebub on December 14, 2020 at 10:33 pm

    the main issue is that you need like 4-5 full size server racks with cooling tech bringing it close to absolute zero (0.015 K)

  39. ShaunJW1 on December 14, 2020 at 10:34 pm

    I’m working on Bose Einstein Condensate wavefunction collapse as a qubit. Still in early stages, see you in 20 years time

  40. Yu Tub on December 14, 2020 at 10:34 pm

    we may will finally have intelligent npcs and real life like physics in games in a few decades

  41. Feelefant Affenhand on December 14, 2020 at 10:35 pm

    Can it run Crysis though?

  42. G M on December 14, 2020 at 10:39 pm

    if true then
    check if again
    end if

  43. Damon Blade on December 14, 2020 at 10:39 pm

    Yes but…. can it run Crysis ?

  44. Jonathan Guillarme on December 14, 2020 at 10:40 pm

    I am fallowing your channel for years , and I wanted to thank you for the amazing videos you are sharing with us. I really enjoy learning with you.

  45. PUCKYMAXX M.A.S.S on December 14, 2020 at 10:40 pm

    I have a question, isn’t actually for (strictly)1node/bit comp like example of simple circuit of a node/lamp will cerate result "current on but lights off/node off" = 0 with value of 1(…imagine this like a single bar raising/through from "0" but not yet quite reach 1like 0,9999~) and "current thru a filament in the node" = -1. Why neg 1? Because in just simple 1bit(strictly) comp emerges some value/slots/storage in comparison with natural number which is "…negative num, 0, positive num…" inside just 1node which stored in each bar/value. So in short, process in 1bit/node is actually not created either value of 0 or 1 but create space of real number emerges which is negative number = -1 and positive number = 0(in value of ~1).

  46. Bruno Miranda on December 14, 2020 at 10:42 pm

    Schrödinger’s cat in a Court of Law: Mr. Cat, have you been there and seen the accident?
    Schrödinger’s cat starts sweating as the court’s psychiatrist checks schizophrenia on his list.

  47. Annu Benny on December 14, 2020 at 10:42 pm

    How quantum computers can benefit the data centers?

  48. Richard Peter Shon on December 14, 2020 at 10:43 pm

    The most exciting but also the most dangerous technology invented to date. In the wrong hands, this is absolute power. Lord of the rings , lord of the rings.

  49. Eremon1 on December 14, 2020 at 10:44 pm

    I still have trouble wrapping my head around quantum computing. I don’t understand how having your bits as 0, 1 or both increases the performance of calculations. Also knowing that in quantum physics observing quantum particles affects there properties, I don’t see how quantum computing could be reliable in any way. Clearly I lack the understanding currently.

  50. MeowO_O on December 14, 2020 at 10:47 pm

    WAIT!!! Honeywell? Don’t they make home appliances??

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