Can we make quantum technology work? | Leo Kouwenhoven | TEDxAmsterdam

Leo Kouwenhoven is a professor of physics at TU Delft. His team at the QU Tech Lab designs experiments to place electrons in superpositions. Why? Because we need computers that can process information as quickly and efficiently as nature does, using quantum mechanics.
So, what is a superposition? Quantum theory says that electrons can circle different atoms at the same time. That's the glue that keeps atoms together into molecules and stops our bodies from falling apart. It's how a green plant leaf can "process" light into oxygen in the fastest and most efficient way possible. If a plant can think that way, why can't a computer do that, too?
Leo Kouwenhoven is a professor of physics at TU Delft. His team at the QU Tech Lab designs experiments to place electrons in superpositions. Why? Because we need computers that can process information as quickly and efficiently as nature does, using quantum mechanics.
So, what is a superposition? Quantum theory says that electrons can circle different atoms at the same time. That's the glue that keeps atoms together into molecules and stops our bodies from falling apart. It's how a green plant leaf can "process" light into oxygen in the fastest and most efficient way possible. If a plant can think that way, why can't a computer do that, too?
This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at ted.com/tedx

Пікірлер: 510

  • @bogdankowalski770
    @bogdankowalski7703 жыл бұрын

    This presentation was the first time I was able to grasp the power of quantum computing. Well done! Thank you so much.

  • @ChrisBrengel
    @ChrisBrengel7 жыл бұрын

    "Superposition is a good thing. You should 'Like' it on Facebook"

  • @SniperLogic
    @SniperLogic7 жыл бұрын

    Excellent talk! Highly accurate, highly understandable, highly interesting, and highly SIMPLE. Let us have more, please. Thank you.

  • @sajateacher
    @sajateacher4 жыл бұрын

    I hadn’t realized that covalent chemical bonds are actually due to the superposition of electrons.

  • @impacthealingministry
    @impacthealingministry3 жыл бұрын

    What Leo illustrated beautifully was classical machines vs quantum computers with the hand shakes, but what he did not disclose is since we are made of superposition particles, that is was possible to greet everyone in the room simultaneously via teleportation & entanglement methods, brain-to-brain instead of mechanically hand-to-hand, so we are far from the realization our mind & body is capable at least of quantum communication and subtle quantum energy but we limited ourselves and the expression of ourselves only in classical, Newtonian ways. Our thinking will gradually change...

  • @diehardcowboys
    @diehardcowboys8 жыл бұрын

    This video presentation is by far the best explanation and easy to understand the powerful nature of quantum computer. Thanks.

  • @xy9394
    @xy93945 жыл бұрын

    Best examples I've seen to approach understanding quantum computing

  • @Torch315
    @Torch3155 жыл бұрын

    Outstanding lecture! Answered many questions for me and increased my understanding of quantum physics and quantum computers.

  • @amitkkar9183
    @amitkkar91836 жыл бұрын

    Excellent, lucid explanation! I thoroughly enjoyed the talk. Looking forward to next generation of things that will change the world.

  • @AbhishekJain347
    @AbhishekJain3477 жыл бұрын

    One of the best explanation of Quantum computing.

  • @thewabitzclan
    @thewabitzclan5 жыл бұрын

    Great talk, by far the best explanation of quantum computers. Thanks

  • @BBBrasil
    @BBBrasil6 жыл бұрын

    Amazing presentation! One observation: the plants use photosynthesis to produce glicose, the oxigen is a (very important) byproduct. And the plant produce it for themselves not for us. But hey, he is into physics ;-)

  • @manuhernz4431
    @manuhernz44316 жыл бұрын

    It's been a valuable pedagogical explanation. Thanks for that!

  • @smilefaxxe2557
    @smilefaxxe25575 жыл бұрын

    Amazing, easy to follow talk, thank you!

  • @curtcoller3632
    @curtcoller36323 жыл бұрын

    Very sad, when a society decides that good people can be rejected based on a "lottery". But our society does many sad things. Your speech is easy to understand for beginners. Thank you!

  • @HeavyK.
    @HeavyK.6 жыл бұрын

    A+ explaining. I can finally wrap my head around thinking this way.

  • @markjagg
    @markjagg2 жыл бұрын

    Your perception of quantum computing is real ⭐️ we applaud you for your presentation⭐️you made it simple to understand

  • @DubaiGuy08
    @DubaiGuy084 жыл бұрын

    That one "ball" of a classical computer doesn't so much multiply as it becomes a wave function, according to quantum mechanics. When a quantum computer solves that "maze," i.e. finds the one solution that allows the ball to exit, that's called the collapse of the wave function.

  • @descheleschilder401
    @descheleschilder4015 жыл бұрын

    Let's say there are 1024 possible paths in the labyrinth, which means we need 1024 qubits. This is realized by making a superposition of 10 electrons spins (the big difficulty in quantum computing is to keep this superposition stable because it takes just a little disturbance to destroy this superposition and this difficulty grows fast the greater the number of particles) meaning there are 2^10 (=1024) qubits (not electrons). Although there are also 1024 different combinations of 10 normal bits, we still just need 10 bits for each of these combinations, but when you make a computation with them you consider each combination in a sequence, which takes 1024 steps (or less) instead of 10 (or less). But my question is: at the points in the labyrinth where you can go in two directions, how is the superposition affected?

  • @bernsbuenaobra473
    @bernsbuenaobra4733 жыл бұрын

    Now I am truly convinced and inspired to be a Quantum Computer programmer and use QM for Agriculture Work! Perhaps bi-location from the accounts of great and holy Saints is a mastery of superposition. Thanks, Doc Leo for the leaf example with the superposition notation overlaid on it - that brings home the message.