Building a quantum computer with superconducting qubits (QuantumCasts)

28 thoughts on “Building a quantum computer with superconducting qubits (QuantumCasts)

  • February 7, 2019 at 11:18 pm
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    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?

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  • February 7, 2019 at 11:20 pm
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    Classical qubit already meet its peak?! #Superconducting qubits then we hit a paradox #Quantum qubits, using it against it self

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  • February 7, 2019 at 11:48 pm
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    Nice work Dan!

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  • February 8, 2019 at 12:40 am
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    Good job @daniel sank

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  • February 8, 2019 at 2:55 am
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    Not easy concepts to explain but good video

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  • February 8, 2019 at 7:12 am
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    I could not understand all the stuff because I do not understand physics well, but I am interested now a lot, thanks Dan

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  • February 8, 2019 at 7:37 am
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    very compelling intro

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  • February 8, 2019 at 9:34 am
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    Great video

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  • February 8, 2019 at 11:18 am
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    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.

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  • February 8, 2019 at 6:17 pm
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    This is my favorite vídeo series right now. Please more episodes 🙂

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  • February 8, 2019 at 10:19 pm
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    nvidia and intel dead it seems

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  • February 9, 2019 at 12:48 am
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    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.

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  • February 9, 2019 at 9:58 am
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    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.

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  • February 10, 2019 at 2:57 am
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    Cool vid

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  • February 10, 2019 at 4:55 pm
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    How is the software written to perform operations? I guess the system language would be more challenging than a classical computer

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  • February 10, 2019 at 7:07 pm
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    Put the components in a vacuum and raise the temperature equal to the one in space you should get almost 0 errors

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  • February 11, 2019 at 1:04 am
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    Does anyone know if tensorflow 1.12, CUDA 10 and CUDNN 7.4 are all compatible?

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  • February 11, 2019 at 3:38 am
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    Can a quantum computer predict my thoughts before I think them, eventually?

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  • February 11, 2019 at 7:37 pm
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    Very informative…..!!!!!.

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  • February 12, 2019 at 5:52 am
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    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?

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  • February 28, 2019 at 3:37 am
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    <3 the hair

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  • March 21, 2019 at 5:48 am
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    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?

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  • April 7, 2019 at 3:49 pm
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    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.

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  • September 21, 2019 at 5:19 pm
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    but can it run Crysis? :))

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  • October 22, 2019 at 6:13 pm
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    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

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  • October 23, 2019 at 1:05 pm
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    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?

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  • October 24, 2019 at 1:08 pm
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    Wheres the french subtitle 🙁

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  • November 3, 2019 at 7:02 am
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    Refrigeration is very important. If Super cooling system fails, no quantum computers works

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