John Preskill - Introduction to Quantum Information (Part 1) - CSSQI 2012

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  • Опубликовано: 31 дек 2024

Комментарии • 26

  • @waynekenney9311
    @waynekenney9311 4 года назад +6

    The way they have the slides on the left, the presenter on the bottom right and what it is on the top right is brilliant. It's perfect.

  • @dash007
    @dash007 8 лет назад +10

    thank you for explaining this in a way that is actually comprehensible. I have watched many videos on the quantum information theory and this is probably the best video

    • @JonathanFetzerMagic
      @JonathanFetzerMagic 8 лет назад +1

      Dashawn Hatton A good book on the topic is Quantum Information Theory by Mark Wilde. Very easy to follow. This guy always puts me to sleep, but I'll check this out for a bit.

  • @zaidsserubogo261
    @zaidsserubogo261 5 лет назад +1

    Please continue, no one is ready to stop unless you are proving, justifying or verifying a predictable phenomena

  • @SigmaTheWhiteFlame
    @SigmaTheWhiteFlame 9 лет назад +29

    RUclips's autoplay is one hell of a thing.

  • @jamesg19912011
    @jamesg19912011 5 лет назад +8

    Eight years later has anybody got all heads and all tails yet ?

  • @icarinamali
    @icarinamali 10 лет назад +2

    Could you solve the measurement problem by putting a classical computer inside a quantum computer to model what is going on inside?

  • @sayanmondal4570
    @sayanmondal4570 5 лет назад

    How to prove the probability of success that is being discussed at 21:35?

    • @MudahnyaFizik
      @MudahnyaFizik 4 года назад +1

      Apply the classical malus' law for cos² θ.
      To get 1/8, simply multiply the probability of state 1 and +, which is 1/2 × 1/2 = 1/4. Since they are not mutually orthogonal, therefore the max probability is 1/4 × π/2 = π/8.

  • @vectorshift401
    @vectorshift401 9 лет назад

    Why do some comments have "Reply" buttons and others not?

    • @arsnakehert
      @arsnakehert 8 лет назад

      +Vector Shift It may have to do with that the ones without reply buttons are from before the reply function was implemented

    • @arsnakehert
      @arsnakehert 8 лет назад

      +Vector Shift It may have to do with that the ones without reply buttons are from before the reply feature was implemented

  • @runggp
    @runggp 4 года назад +1

    great lecture!

  • @georgegrubbs2966
    @georgegrubbs2966 4 года назад +1

    His students should write out the answers to his questions. They don't know why they are studying QIT.

  • @davidwilkie9551
    @davidwilkie9551 7 лет назад

    So normalized states are linked in "gyroscopic" orthogonal alignment?, because of the e-Pi occurrence of connection as unity, bifurcation, trifurcation etc in the point, axial, circular etc sequence. (And is that "entanglement" in a symmetric sequence?)
    Because 1-0 is contained in unity of point connection and axial superposition dual quantum probabilities, (logarithmic function "e" state of unitary connection or completeness), in the functional-universal time connection, and that determines the orthogonal rotational/spin-reflection relationship of "internal" direction, (1-0 => infinity of infinite direction phases in superposition), and superconduction, (distributed everywhere, all at one-ce), ..the elemental quantum state.(?)
    And the meaning of "i" makes sense defined as the containment of 0-1D, the dualistic quantum unit-unity of closed connection probability.
    (The familiar pattern of ripples emanating from a rock dropped in a pond is driven by a point-impact, axial-oscillation, and radial-axial-oscillation of e-Pi orthogonal combinations in point-line-circle reciprocal-oscillation sequences)
    "Classical" makes sense as the harmonic alignment of vector-rays/radians of synchronous frequencies, in conducting/connecting interference.
    Less than "Maximally Entangled", would that be "vortex shedding", or Eddy Currents, 2nd Law of Thermodynamics dispersion? "Obviously", 1st Law of Thermodynamics dispersion is log base e sequences of disorder, eg Navier-Stokes, Boltzmans type mathematical simulations(?) Scattering, or inclusion-exclusion Q-prime sequences in the Quantum Fields Mechanism. (Amplitehedron concept of superimposed spin-scattering matrices? Which is another version of Archimedes discovery of Pi by polygons?)
    So GPS is a system that "uncovers the same coin", simultaneously, that's what the timing clock does. Because the relative shape/orientation of the system including the locations is always changing with time. Bell's inequality is a recognition that only one position is accurate at any one-simultaneous timing, by reverse process.
    The observable universe is an example of evolved quantum-logarithmic e-Pi coding?, selected naturally by self-assembling resonance. (?) (Logical, not reasonable, like any computer)

    • @ANT-jm4qx
      @ANT-jm4qx 6 лет назад +4

      David Wilkie
      Hey dude pass me some of whatever you're smoking

    • @prottoychakraborty1124
      @prottoychakraborty1124 5 лет назад

      Wait...if you can't explain it simply you don't understand it...

    • @sowrabhsudevan6636
      @sowrabhsudevan6636 4 года назад

      @@prottoychakraborty1124 I don't always agree with this quote, but in this situation this is very appropriate :P

    • @tattah96
      @tattah96 3 года назад

      lmao

  • @StephenPaulKing
    @StephenPaulKing 12 лет назад +1

    The trick is to realize that there is no such thing as "certainty"; there is only relatively true.

  • @prem4302
    @prem4302 4 года назад

    He ended the lecture at cliff hanger!

  • @darkpearl88
    @darkpearl88 11 лет назад

    fascinating topic. i love this stuff but he sounded arrogant in his intro. so anyone who isnt a scientist is wasting their life?

    • @le0nz
      @le0nz 5 лет назад +2

      You could be an artist or a teacher.

    • @faisal_noor
      @faisal_noor 5 лет назад +4

      I'm from future, quantum computer is successful.