Quantum computers: Computing the impossible



quantum computers could one day solve some of the world's toughest problems and that do this by working completely differently to a regular computer information is stored in your laptop in bits every bit is either 1 or 0 up or down but quantum computers are made of qubits unlike this qubits can be a mixture of 1 & 0 at the same time quantum computers are made of several entangled qubits with all their stripes connected together but actually building a quantum computer is a challenge in normal computers it's easy to add more bits but for quantum computers the more qubits you have the harder it is to add one more this makes it tricky to scale up from the simple quantum computer has something more powerful another problem is that quantum computers have to keep their qubits protected too much interference from the outside world and then tangle mint is broken but overcoming these challenges and building a powerful quantum computer would come with big rewards take searching imagine you have a bunch of mixed-up business cards how would a computer find the right one a normal computer has to look through one by one until it eventually finds the right card but a quantum computer has a trick up its sleeve because the quantum computers in many states at once it can search all the cards at once after several sweeps it claims the card and quantum computers could help tackle all sorts of other problems like modeling protein folding and cracking data encryption but even if scientists can one day build a powerful quantum computer it probably wouldn't be useful for everyday tasks so don't throw away your laptop just yet you

48 Comments

  1. César Cordero said:

    Read the Humanity Book:

    Both the same:

    https://humanity-book.blogspot.com/
    https://dev-rockcesar.blogspot.com/

    Both the same. The Humanity Book:

    https://humanity-book.blogspot.com/2019/05/humanity-book-1-libro-de-la-humanidad-1.html
    https://dev-rockcesar.blogspot.com/2019/04/humanity-book-libro-de-la-humanidad_6.html

    Both the same. The Humanity Book Compilation:

    https://humanity-book.blogspot.com/2019/05/compilacion-de-humanity-book-humanity.html
    https://dev-rockcesar.blogspot.com/2019/04/compilacion-de-humanity-book-humanity.html

    June 28, 2019
    Reply
  2. Graham Vajnagi said:

    Good video, had all the info I needed!

    June 28, 2019
    Reply
  3. João Marcos said:

    I hate the "oh look guys is so magic almost sentient haha look how cool it is, it can be both at the same time".
    This doesn't help anyone to gather any real knowledge of the topic. It's just misleading and creates false concepts in your head for something that is already really confuse.

    June 28, 2019
    Reply
  4. Moe Gattan said:

    current computers do not search large database one by one, the use advanced logarithm like bubble sort & binary search. where it starts in the middle of the data and by comparing the value and spleting the database and start again in the middle.

    June 28, 2019
    Reply
  5. Global User said:

    They already have build quantum chips and these chips are used in sets of big network machines.

    June 28, 2019
    Reply
  6. Qian Chen said:

    It just doesn't explain anything.

    June 28, 2019
    Reply
  7. Dante S. González said:

    Please, enable closed captions! 🙂

    June 28, 2019
    Reply
  8. R. Markquis Brown said:

    I wonder if this is when they will start to use bio-quarts for their qubits?

    June 28, 2019
    Reply
  9. Anime entertainment said:

    interesting

    June 28, 2019
    Reply
  10. Fiqri Syah Redha said:

    Beautiful animation

    June 28, 2019
    Reply
  11. Kenneth Wiley said:

    how about a quantum laptop

    June 28, 2019
    Reply
  12. xXx_MlgTr1kSh00ter _Xx said:

    and also those qubits needs liquid helium cooling
    just 22°C the qubits dies and turned into less cute bits :/

    June 28, 2019
    Reply
  13. J S said:

    That video was great bro. Keep it up. You gonna do well .

    June 28, 2019
    Reply
  14. Valeska Weich said:

    even if they could be one????? IT IS already build and running! Search "D-Wave" Quantum computer…! :O

    June 28, 2019
    Reply
  15. cosimoto1 said:

    Well that's B.S.! This information has been around for a decade and these liars portray it as being brand new! I am sick of the so called reporters (not real reporters but those owned by the elite) who present this as new! YouTube is a filter to delete the truth! Plain and simple!

    June 28, 2019
    Reply
  16. Alfredo1987a said:

    Built it first and then talk. This video is useless.

    June 28, 2019
    Reply
  17. Richard the sceptic said:

    Computers are not made of bits, they manipulate bits. Modern computers use parallel processing to speed up operations such as searches. This clip tells us nothing about how a quantum computer works still less how it could achieve a massively parallel search.

    June 28, 2019
    Reply
  18. Eric Green said:

    In principle sure, but in practice how does it actually do it?>

    June 28, 2019
    Reply
  19. MrChubib0 said:

    great work and explanation!

    June 28, 2019
    Reply
  20. Slartibartfast said:

    Where to start – searching through every card? Computer systems are much more sophisticated than only being able to use what in effect is a table scan – some up let's have a better example.

    June 28, 2019
    Reply
  21. Auron Kardek said:

    You miss a lot of explanation like quantic logic gates because traditional logic gates don't work (the and, not, or), the names and the differents algorithms, the algorithm used for exemple in the video (the buisiness cards) is the quantum algorithm of Grover.

    June 28, 2019
    Reply
  22. N00B tube said:

    To everyone responding "useless video": did your ego just kicked in and made you respond to show everyone that you're smart and already know these qc basics? Good job! You successfully showed the people of earth that you are a genius via a YouTube comment! Be proud of yourself.. ah, you already are, aren't you?…..

    Nature, thanks for the video 😉

    June 28, 2019
    Reply
  23. IMYTnNERDEE2 said:

    in what program was this beatiful animation made?

    June 28, 2019
    Reply
  24. Kabbalah Cowboy said:

    Nice Job!  As the video suggests, today's fastest supercomputers, which crunch trillions or more operations per second, carry out only one operation at a single moment in time. Some interesting works out there take the possibilities of quantum computer processing to their logical conclusions. The book “On Computer Simulated Universes” discusses the possibility of running computer simulated universes.  It's a strange new world.

    June 28, 2019
    Reply
  25. CIRUS MEDIA said:

    Nice animation… but not the best explanation!
    QBits are not only (ones), (zeros), (ones & zeros at once).. they can also be EVERYTHING in-between 0 and 1 ..to the smallest measurable degree!

    June 28, 2019
    Reply
  26. Artem Kovera said:

    i think only Scott Aaronson can adequately explain quantum computing

    June 28, 2019
    Reply
  27. Guillaume Verdon said:

    that quantum parallelism explanation was highly inaccurate. We know that a general unstructured search problem on a quantum computer will only benefit of a square root of n speedup over classical.

    June 28, 2019
    Reply
  28. James J said:

    I remember when a regular pc would take up an entire room. People also thought a regular computer would never be used in everyday life, C'mon man!

    June 28, 2019
    Reply
  29. Malik Shahbaz Noor said:

    N

    June 28, 2019
    Reply
  30. Winding Light said:

    What these explanations don't mention is that quantum computers are probabalistic. There's a chance that the computer will spit out the wrong answer even if you perform the computations correctly.

    June 28, 2019
    Reply
  31. TheVasellius said:

    does anyone knows what software is used for making this animation

    June 28, 2019
    Reply
  32. HeyItsDex! said:

    kauntoom cumpewtess

    June 28, 2019
    Reply
  33. SoCalFreelance said:

    I'm still highly skeptical. This is because everyone talks about how quantum computers work on the periphery, but no one can explain in a grounded way without falling back on theoretical physics. This is unlike Von Neumann architecture/computing which can be explained to a child.

    June 28, 2019
    Reply
  34. Lf Stephens said:

    Useless video? Is everyone an expert on this all of a sudden?

    June 28, 2019
    Reply
  35. Cam365 said:

    if the NSA go their hands on quantim.computing we will have zero privacy

    June 28, 2019
    Reply
  36. jstrick38us said:

    Slick graphics, but both audio and graphics devoid of useful information. Sad waste of 3:13 (plus time to write this).

    June 28, 2019
    Reply
  37. aqil hebat said:

    nice anination

    June 28, 2019
    Reply
  38. Caio Tavares said:

    Useless video

    June 28, 2019
    Reply
  39. lornlynx said:

    cue R2D2 sounds

    June 28, 2019
    Reply
  40. Muhammed Shameem N said:

    Cool, another technology on the rise

    June 28, 2019
    Reply
  41. user73o1u 81716 said:

    Nice to know Nokia still exists and can even use Nature to promote its name. Shame Nature, shame. -50 impact points for you and your house.

    June 28, 2019
    Reply
  42. verioffkin said:

    What about energy consumption? More things, same money?

    June 28, 2019
    Reply
  43. Majoofi said:

    useless explanation

    June 28, 2019
    Reply
  44. Irun Mon said:

    the animation is on point!!

    June 28, 2019
    Reply
  45. Delete said:

    Loved the animation!

    June 28, 2019
    Reply
  46. Dylan T said:

    delicious graphics

    June 28, 2019
    Reply
  47. Fisicool said:

    amazing

    June 28, 2019
    Reply
  48. 宮路次郎 said:

    ありがとうございます。

    June 28, 2019
    Reply

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