What is a Hilbert Space? | Quantum Mechanics

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  • čas přidán 31. 05. 2024
  • An informal, non-rigorous, but (hopefully) intuitive look at what a Hilbert space is. Essentially, it is a complete, normed, inner product space, as opposed to a Banach space, which is a complete, normed, linear (vector) space. What does all this mean? Watch the video to find out!
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    References and Resources
    Video series on topology and manifolds by XylyXylyX
    • What is a Manifold?
    A Brief Introduction to Hilbert Space and Quantum Logic
    www.whitman.edu/Documents/Aca...
    Hilbert Space and Quantum Mechanics
    quantum.phys.cmu.edu/QCQI/qit...
    Lebesgue Measure and L2 Space
    www.math.uchicago.edu/~may/VIG...
    Metric and Normed Spaces
    www.math.ucdavis.edu/~hunter/...
    A Brief Guide to Metrics, Norms, and Inner Products
    people.math.gatech.edu/~heil/b...
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Komentáře • 15

  • @appayanmondal3521
    @appayanmondal3521 Před 2 lety +5

    I'm an aspiring Mathematician and I totally love your video.

  • @nehalkalita9173
    @nehalkalita9173 Před rokem +2

    It would have been good if you would have uploaded this video with higher resolution. If possible, please do it.

  • @5ty717
    @5ty717 Před 2 měsíci

    As a lay mathematician… ur piece was pitch perfect. Many thx

  • @zevan4b
    @zevan4b Před 2 lety +2

    Great explanation

  • @anarchistalhazen7084
    @anarchistalhazen7084 Před 3 lety +5

    Great video!

  • @masonklepp5651
    @masonklepp5651 Před 2 lety +2

    Super helpful video! I'm about to start a class in quantum computing which is a little above my pay grade, and needed a little refresher on Hilbert spaces for it. This did the trick!

  • @TheCynicalPhilosopher
    @TheCynicalPhilosopher  Před 3 lety +2

    To make the idea of nearness (neighborhoods) in the topological space more clear, we can loosely define them as follows:
    P is an element of X (P ∈ X), S is a subset of X (S ⊆ X), and P is an element of S (P ∈ S)
    If Q is an element of S (Q ∈ S) then Q is in the neighborhood of P
    And if U = S∪R then U is also a neighborhood of P
    Also, the inner product space must satisfy the parallelogram law: en.wikipedia.org/wiki/Parallelogram_law
    ||x+y||^2 + ||x-y||^2 ≥ 2*||x||^2 + 2*||y||^2

  • @sxu2007
    @sxu2007 Před 2 lety

    wow, amazingly explained.

  • @pelimies1818
    @pelimies1818 Před 3 lety +1

    BENAKH!
    Amazing, it’s same in Klingon!

  • @jacobvandijk6525
    @jacobvandijk6525 Před 2 lety +1

    Great to see the bigger mathematical picture, but I miss the bigger physical picture: why QM? + why QM isn't sufficient?
    Pronunciation of the name 'Banach': upload.wikimedia.org/wikipedia/commons/a/a6/Pl-Stefan_Banach.ogg

  • @melchiortod29
    @melchiortod29 Před rokem

    The "b-nak" space kinda hurt my feelings. It's banach, ba is of normal length and you say the a and the nach is ch not k and the second a is pronounced quickly. So basically banach with emphasis on the first a

    • @melchiortod29
      @melchiortod29 Před rokem

      Just realised i was one of 11 comments, so i have to add that speaking german fluently banach pronounced bnak kinda hurts my feeling, but the video in itself is very good. If i'm critiquing the pronounciation and nothing else, it might even be a compliment. Thank you for the video