Quantum Computers Explained – Limits of Human Technology

  • Published: 08 December 2015
  • Where are the limits of human technology? And can we somehow avoid them? This is where quantum computers become very interesting.

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    Quantum Computers Explained – Limits of Human Technology

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Comments • 14 287

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    • RU the button eyed cat
      RU the button eyed cat  3 weeks back


    • Poras kinneth
      Poras kinneth  1 months back

      Is your products availabale at lazada?

    • Rana Asjad
      Rana Asjad  1 months back

      Please Make A Video on Quantum Entanglement...

    • Jakari Jones
      Jakari Jones  1 months back

      Do one on deep web and dark web

    • Pradeep Muppavarapu
      Pradeep Muppavarapu  2 months back

      Can you please send me the links of your sources for this video? it will helps me many ways

  • Shaleen Mundra
    Shaleen Mundra  3 hours back

    the animation is sick !!

    • FireBird Studios
      FireBird Studios  10 hours back

      Wow! Such an in depth explanation! Thanks

      • Mr. Meticulous
        Mr. Meticulous  23 hours back

        One of my favorite videos, but what in the world does "rotating probabilities" mean? Is this referring to probabilities like the electron cloud superposition? But how can that number be "rotated"?

        • Ambient Morality
          Ambient Morality  8 hours back

          +Subjagator Worth noting it's specifically purely rotating rather than rotating and scaling because it's a unit complex vector, so the "length" is constant.

        • Subjagator
          Subjagator  20 hours back

          A superposition is much more than just a number. It is a complex vector which can be rotated.

      • Luka
        Luka  1 days back

        this is very purely explained

        • Johan Kotze
          Johan Kotze  2 days back

          Listen guys, i have a PhD in Engineering... I came here for answers... And I left here thinking.... How on God's green earth do you make this work. Like an entangled particle, can i entangle two, give one to someone else and then whisper something to it, and then automatically the other one responds? Like instant communication? Do you keep the fecking particle in a box or something ? And then... If the computer gives me any number of answers for one question... How is that helpful? Im gonna hand back my degree.. Im clearly stupid. Someone explain!

          • Ambient Morality
            Ambient Morality  8 hours back

            With a PhD in engineering you can definitely go through the math, this video tries to avoid it and probably makes it worse that way.

            The actual math is a ton of linear algebra with unitary matrices and unit vectors. You can imagine you write the state of a single quantum particle as a two-dimensional unit vector (a, b), with a correlated with the 0 state and b with the 1 state. If you read a bit on that, you'll find all entanglement ultimately means is the state of one particle must be written in terms of the state of another particle and vice versa: you can't separate the states. More specifically, you'd represent the state of the system as a four-dimensional vector (n, m, o, p), where the components represent the 00 state (the state where both particles are 0), 01 state (one particle 0, the other 1), and so on. If you have three entangled particles it becomes an eight dimensional vector. But if you then perform any quantum action that doesn't break entanglement on one of the particles, you have to change the entire state - so you're ultimately affecting eight different numbers at the same time.

            The cool thing is that a and b are not just normal numbers but complex numbers, so they have magnitude and phase. That means they can interfere in different ways if you apply gates smartly, and that means you can entangle all your particles, apply gates smartly to rapidly compute across a very large state space, and then measure a final state where the probability of measuring the right state is almost one.

            That last part was kind of hand wavy. I can elaborate more if you want

        • Clifford Kahn
          Clifford Kahn  2 days back

          This isn't yet the limit of computers guys! How about we build a size of an atom quantum computers and then connects them all together!

          • Felix Roux
            Felix Roux  2 days back

            1:44 those kids probably don't even go to school.

            • ANWAR KHAN
              ANWAR KHAN  2 days back

              Best explained...!! Awesome job guys..

              • BurakkuHishou
                BurakkuHishou  2 days back

                Ok so let's see if i get this:

                Normal computers use 1 or 0
                Quantum computers use 1 or 0, but also take advantage of super position, which means we don't know what that value is, so long as we don't observe it.
                However, how are we supposed to measure or use superposition if it becomes obsolete as soon as it's observed?

                • Subjagator
                  Subjagator  20 hours back

                  Superposition records ALL possible values. So instead of storing your values seperately, you can store them all together, and manipulate the superposition to return the value you want at whatever time you want.

              • Basia Preussner
                Basia Preussner  3 days back

                I subscribed my name is Victor Mark Bak and do not make fun of my last name.

                • Neonic Plays
                  Neonic Plays  3 days back

                  Bruh, now we have 7nm im pretty sure

                  • TringaporeanGaming
                    TringaporeanGaming  3 days back

                    Was that a rick And morty reference?
                    (How familiär are you with The gear wars)

                    • Gonzalo Nazar
                      Gonzalo Nazar  14 hours back

                      2:31 actually it was! Checking if someone else noticed it

                  • Ken PH
                    Ken PH  3 days back

                    Is that star gate?(4:43)

                    • Quantum Jump
                      Quantum Jump  4 days back

                      So... are they just better than classic computers in general or have flaws on other domains that classic computers are better at ?

                      • Ambient Morality
                        Ambient Morality  8 hours back

                        The really interesting thing is nobody has actually shown quantum computers are faster at anything. It's possible that there is a classical algorithm that, for all problems, can solve a problem just as fast as a quantum algorithm. As an example, we thought quantum computers were much faster at something called the "recommendation problem", but someone recently proved classical computers can do it just as fast. That being said, Shor's quantum algorithm is probably faster than any classical algorithm for prime factorization.

                        Broadly speaking, classical computers are still much faster and probably will always be much faster at the majority of tasks. Quantum computers offer speedups for very specific problems that can be reduced down to a ton of linear algebra, and a very specific type of linear algebra too. But that isn't many problems at all.

                    • Papa Franku
                      Papa Franku  4 days back

                      I really hate how the education system make simple things such "polarization" so complicated when it's actually super easy wasting so much time from smart students time and preventing them from making an actual process and wasting their life.

                      • Meme juice
                        Meme juice  4 days back

                        2:32 Rick and Morty reference! 😮

                        • Tripwire Gamer
                          Tripwire Gamer  4 days back

                          0 * 1
                          you stupid, stupid child

                          • Sans craft
                            Sans craft  5 days back

                            Oh no soo much information i still don't know how the quantum computer ;-;

                            • Gabriel Kirby
                              Gabriel Kirby  5 days back

                              normal computers: *exist*
                              Quantum computers: pathetic

                              like if you laughed

                              • Soviet Union
                                Soviet Union  5 days back

                                thanks i still dont know how it works

                                • stafa stacks
                                  stafa stacks  5 days back

                                  I have on word to decride how I felt after watching this video. "Huh"

                                  • Chris Willett
                                    Chris Willett  6 days back

                                    2:30 rick and Morty reference 😂

                                    • [SS] Mebo
                                      [SS] Mebo  6 days back

                                      I am gaining brain cells by watching this

                                      • fooker mooker
                                        fooker mooker  6 days back

                                        Wow, you stuck with the Zelda music. Another reason to subscribe.

                                        • Roy A
                                          Roy A  7 days back

                                          correction, being able to crack an encryption algorithm is not a benefit of quantum computing (as implied by the vid), its being able to create an uncrackable encryption algorithm which is the benefit

                                        • Ak view
                                          Ak view  7 days back

                                          Please make a video on moores law

                                          • bts army
                                            bts army  7 days back

                                            The duck at 4:29 is me rn

                                            • Bogglerism
                                              Bogglerism  7 days back

                                              But can it run crysis ?

                                              • Phos4us
                                                Phos4us  1 weeks back

                                                So basically over 9000 FPS 16k gaming is easy.

                                              • Lux Bro
                                                Lux Bro  1 weeks back

                                                1:44 I think they got some maths wrong....

                                                1 x 1 = 1 , 0 x 1 = 0 , 0 + 1 = 1

                                                • Yoav Ben-Dror
                                                  Yoav Ben-Dror  1 weeks back

                                                  You can do a video on quantum physics and why it is theoretically different in every dimension, and what exactly is different, because quantum physics is not very specific, I tried to read about it on the Internet but it's just too complicated, and on your channel you explain complicated things in simple words ... .

                                                  • Yoav Ben-Dror
                                                    Yoav Ben-Dror  1 weeks back

                                                    Think about it in ten or twenty years if your computer is broken you go to a physicist not a technician or a computer repairman

                                                    • EpicWisp
                                                      EpicWisp  1 weeks back

                                                      Who else watching from 2521?

                                                      • Kyle Thomas
                                                        Kyle Thomas  1 weeks back

                                                        According to Schrödinger’s Law, if you stab someone and put them in a box, it may or not be murder

                                                        • Scraft161
                                                          Scraft161  5 days back

                                                          thanks for the idea.

                                                          I am TOTALLY NOT planning on doing something like this
                                                          again TOTALLY NOT!

                                                          *grabs knife*

                                                          TOTALLY NOT planning something.

                                                          *grabs large box*

                                                          TOTALLY NOT!!!!!
                                                          got it
                                                          TOTALLY NOT

                                                      • Dokidelta117
                                                        Dokidelta117  1 weeks back

                                                        God I freaking love Quantum Mechanics. I am fanboying about Quantum Mechanics right now.

                                                        • Genius
                                                          Genius  1 weeks back

                                                          I need more details

                                                          • Amos Santoya
                                                            Amos Santoya  1 weeks back

                                                            Intel 2014: 14nm
                                                            Intel 2019: 14nm
                                                            Intel 2024: say no more

                                                            • Alex Rose
                                                              Alex Rose  1 weeks back

                                                              Where were these fuckers when i was in highschool

                                                              • ricky rhubarb
                                                                ricky rhubarb  1 weeks back

                                                                What if we just break apart atoms into quarks. Simple

                                                                • Samurai Medi
                                                                  Samurai Medi  4 days back

                                                                  That is what we are doing with the particle accelerator though. Trying to understand the other four flavors, not just the proton or neutron.

                                                              • XxDeadBunnyxX
                                                                XxDeadBunnyxX  1 weeks back

                                                                Schrödinger's qubit

                                                                • Giulio Personeni
                                                                  Giulio Personeni  1 weeks back

                                                                  No meaning

                                                                  • alexeskimo
                                                                    alexeskimo  1 weeks back

                                                                    HAHA OH MY GOD THE RICK AND MORTY REFERENCE 😂😂😂 “How familiar are you with the gear wars exactly?”

                                                                    • mr.kitloin
                                                                      mr.kitloin  1 weeks back

                                                                      To be fair, you have to have a very high IQ to understand Rick and Morty. The humor is extremely subtle, and without a solid grasp of theoretical physics most of the jokes will go over a typical viewer's head. There's also Rick's nihilistic outlook, which is deftly woven into his characterisation - his personal philosophy draws heavily from Narodnaya Volya literature, for instance. The fans understand this stuff; they have the intellectual capacity to truly appreciate the depths of these jokes, to realize that they're not just funny- they say something deep about LIFE. As a consequence people who dislike Rick and Morty truly ARE idiots- of course they wouldn't appreciate, for instance, the humour in Rick's existencial catchphrase "Wubba Lubba Dub Dub," which itself is a cryptic reference to Turgenev's Russian epic Fathers and Sons. I'm smirking right now just imagining one of those addlepated simpletons scratching their heads in confusion as Dan Harmon's genius unfolds itself on their television screens. What fools... how I pity them. 😂 And yes by the way, I DO have a Rick and Morty tattoo. And no, you cannot see it. It's for the ladies' eyes only- And even they have to demonstrate that they're within 5 IQ points of my own (preferably lower) beforehand.

                                                                  • Marcus Jarrell
                                                                    Marcus Jarrell  1 weeks back

                                                                    It was originally believed that only 6 computers would ever be needed world-wide.
                                                                    So in the next 100 years, I expect to see quantum computers built into watches.

                                                                    • The Exiled Nomad.
                                                                      The Exiled Nomad.  6 days back

                                                                      More likely we would see the re-emergence of co-processors, but this time they are QCPUs.

                                                                  • AF Bennett
                                                                    AF Bennett  1 weeks back

                                                                    A computer like the ones we have today would have been seen as impossible just 60 years ago. Imagine all the ‘impossible’ things that we’ll crack in the next 60 years especially with computers and AI on our side.

                                                                    • Sai PABBATI
                                                                      Sai PABBATI  1 weeks back

                                                                      Do you just add the word quantum in front of everything

                                                                      • Oscar Díaz
                                                                        Oscar Díaz  1 weeks back

                                                                        Will finally play GTA 4 at 60fps

                                                                        • Per-ivar Nikolaisen
                                                                          Per-ivar Nikolaisen  1 weeks back

                                                                          You have very good videos