Building a quantum computer with superconducting qubits (QuantumCasts)

Building a quantum computer with superconducting qubits (QuantumCasts)

In this episode of QuantumCasts, Daniel Sank discusses the difference between classical and quantum information at the physical level, and how quantum information is harnessed in superconducting devices. You’ll learn what makes a superconducting qubit a quantum mechanical device, as well as some of the challenges researchers face in preserving quantum information. Stay tuned for future episodes, and subscribe to our channel, by clicking here → https://bit.ly/TensorFlow1

QuantumCasts playlist → https://bit.ly/2Pw0xay

Learn more about the Google AI Quantum team → https://bit.ly/2DnvKLy

29 Comments

  1. Chris Wendler on January 4, 2020 at 7:59 pm

    very compelling intro



  2. Rishwi binnu on January 4, 2020 at 8:00 pm

    Why can’t we make a quantum cube which doesn’t interact with the other particles? Instead of a flat chip, we can make a closed cube inside which qubits are built.



  3. Bernardo Meurer on January 4, 2020 at 8:06 pm

    Nice work Dan!



  4. W. Maximillian de Johnsonbourg on January 4, 2020 at 8:07 pm

    Very informative…..!!!!!.



  5. Adrian Grassi on January 4, 2020 at 8:07 pm

    This video was excellent. I can say that I have a very basic understanding of quantum computers. How can we observe superposition without changing it? Due to the cooling?



  6. Sir Cumference on January 4, 2020 at 8:07 pm

    Cool vid



  7. Damien Robert on January 4, 2020 at 8:08 pm

    Wheres the french subtitle 🙁



  8. Uvaraj Ramesh on January 4, 2020 at 8:08 pm

    How is the software written to perform operations? I guess the system language would be more challenging than a classical computer



  9. Gleb Dovzhenko on January 4, 2020 at 8:09 pm

    Cool video, thanks! Would be great to know more about the current challenges you guys are facing, maybe in a follow-up? Also would be really interesting to see a lab tour type of video. You mentioned improving the superconducting material purity – is that a part of the research you do? So it’s not just software / hardware development, it’s also material science and physics? Sounds very interesting.



  10. linkcell on January 4, 2020 at 8:11 pm

    This is my favorite vídeo series right now. Please more episodes 🙂



  11. Kirill Konevets on January 4, 2020 at 8:12 pm

    I could not understand all the stuff because I do not understand physics well, but I am interested now a lot, thanks Dan



  12. Timothy Lau on January 4, 2020 at 8:17 pm

    Good job @daniel sank



  13. hirbood akhavan on January 4, 2020 at 8:17 pm

    I don’t understand why does it matter if information is leaked? Can’t we avoid errors by simply not receiving the information? after all information exchange happens in a system.



  14. P D on January 4, 2020 at 8:19 pm

    but can it run Crysis? :))



  15. Manuel Romero on January 4, 2020 at 8:22 pm

    Not easy concepts to explain but good video



  16. theshortcut101 on January 4, 2020 at 8:29 pm

    Amazing video! thank you! well explained. I think its great to learn more about how errors get produced! We should have a think tank for the subject. Qubit fab is the future. I can’t wait to hear more from the team regarding its progress. Also what classes / degrees are required to get into this type of work?



  17. Jevoy James on January 4, 2020 at 8:30 pm

    Does anyone know if tensorflow 1.12, CUDA 10 and CUDNN 7.4 are all compatible?



  18. vi wa on January 4, 2020 at 8:34 pm

    Great video



  19. Thorium Guy on January 4, 2020 at 8:41 pm

    <3 the hair



  20. Hoang Dang Xuan on January 4, 2020 at 8:42 pm

    When we can make a computer that uses this quantum mechanism?



  21. John Cox on January 4, 2020 at 8:45 pm

    I’m still confused how logical operations are performed and the results observed. A good amount of time of this video was spent focusing on explaining the protection the qubit circuitry from any interference, even so much as a photon, but then it was said that logic operations are sent to the qubits for processing, and no explanation was given.

    (1) How are the logic operations sent to the qubits for processing without changing the qubits into an unknown state?
    (2) And how are the results observed without altering the answer? Observation involves interaction with the qubit, even if it is so much as a photon or a very sensitive electromagnetic field sensor that responds by sending out a signal (which itself generates a new electromagnetic field), and if the qubits are supposed to be protected from such things, how are answers observed?



  22. Carl on January 4, 2020 at 8:47 pm

    1 What kind of capacitor? Would a variable capacitor that a separate computer hooked up to with sensors help with noise and calibration?

    1 Also, is a cross the most geometrically efficient shape? Could it be adapted into an equilateral triangle?

    3 What are the two devices at the top and right of the cross? Do those combine as the capacitor?



  23. SamyBerrabah on January 4, 2020 at 8:49 pm

    Put the components in a vacuum and raise the temperature equal to the one in space you should get almost 0 errors



  24. Self Aware Devices / Bilinçli Cihazlar on January 4, 2020 at 8:49 pm

    nvidia and intel dead it seems



  25. Sherif Sherif on January 4, 2020 at 8:53 pm

    Can a quantum computer predict my thoughts before I think them, eventually?



  26. Konan Jean-Claude Kouassi on January 4, 2020 at 8:55 pm

    Thanks for the video Daniel,
    If I got it well, you are proposing a new chip (8 times colder than space) simulating the operations of Cryostat. The superposition is ensured by the Superconductivity at steady rate, but we could have some errors.
    My questions: Does this chip also manipulate true electrons inside for the superposition states (as the Cryostat), or States are hardcoded in the simulation? Is it possible to use this chip to create small quantum computers (like PCs) and make them available for the public?
    Correct me if I made a mistake, please.



  27. Urderie Evlart #Crossesboi on January 4, 2020 at 8:55 pm

    Classical qubit already meet its peak?! #Superconducting qubits then we hit a paradox #Quantum qubits, using it against it self



  28. Venkatesan Munusamy on January 4, 2020 at 8:55 pm

    Refrigeration is very important. If Super cooling system fails, no quantum computers works



  29. Anab akhtar on January 4, 2020 at 8:57 pm

    This is definitely the MOST INFORMATIVE video on Quantum Computing basics. Thanks a lot Mr Sanks……also kudos to Sergio for such an amazing push