Sheldon Goldstein - John Bell and the Foundations of Quantum Mechanics

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  • Опубликовано: 3 авг 2014
  • This talk was held during the "Summer School on the Foundations of Quantum Mechanics dedicated to John Bell" in Sesto, Italy (28.07.2014 - 30.07.2014).
    More information can be found on the conference website www.sexten-cfa.eu/it/conferenz...
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Комментарии • 28

  • @sonarbangla8711
    @sonarbangla8711 6 месяцев назад

    Nonlocality follows from ER and EPR, Bell's hidden variable leads to entanglement. Yet ER and EPR (EPR was published first) not only talks on nonlocality but also help debunk singularity, which had hardly been discussed, Charge leads to singularity and neutrinos leads to overcoming singularity. Tim's rejection of Bohm is enough reason to forget it.

  • @mickdaly2778
    @mickdaly2778 7 месяцев назад

    What's the reference he quotes from on slide 19 at 22 - 23 minutes (& page 166) ?

  • @davidwilkie9551
    @davidwilkie9551 7 лет назад +3

    Yeah, "measurement" the halting problem. There is no precision boundaries, only inclusive centers. So if science as actually about recognizing significant combinations, then we might abbreviate the "discipline" as QM - Maths and Physical Science/Maps, of change.
    Maps are 2D images, in which, like a photo, the 3rdD is implied by the relative information density superimposed on the page, and those points in the plane are parallel and resonant in the interval between micro-macro vanishing points of the third Dimension. All observation is limited to this condition, everything else is "hidden".

    • @david203
      @david203 Год назад +1

      If by "halting problem" you mean a fundamental issue, then measurement is such only in the Copenhagen Interpretation, which fails to describe measurements. In Bohm's theory, the measuring mechanism is PART OF THE EXPERIMENT, not outside of it, so its position is determined by the experiment, with no problem. Can't understand your point about maps and hiding, though.

  • @davecurry8305
    @davecurry8305 2 года назад

    Are hidden variables non-observables? If so, do they cancel be-ables?? If they are cancelled, where do they go?

    • @david203
      @david203 Год назад +2

      Hidden variables are the same as initial values in classical mechanics--the initial positions of the particles. Nothing cancels. Be-ables just means things that can happen. Why would they get cancelled? They can't be cancelled because then they would not happen! Note: be-ables appear to be the eigenvalues of an experiment--the possible measurements.

  • @sonarbangla8711
    @sonarbangla8711 2 месяца назад

    Sheldon is confused how probabilistic world of QM can turn deterministic. In QM the quantum numbers can be quite far from one another, but in a classical world the levels are so near each other that the states become deterministic., Sheldon calls 'one world'. Bohm or Everett didn't provide with the mathematics producing the classical from the quantum.

  • @frun
    @frun 3 года назад +3

    Paths look like geodesics of general relativity

    • @david203
      @david203 Год назад +1

      Yes, like lines of force. Only not lines of force but trajectories of particles.

  • @Killer_Kovacs
    @Killer_Kovacs 6 месяцев назад

    I don't understand why hidden variables are such a problem. I understand the procedural dismissal that Faynman explains in his lectures.
    But Quantum was the product of obvious failures in the standard theories.

  • @colingeorgejenkins2885
    @colingeorgejenkins2885 5 лет назад

    I ain't no scientist but are we not all little partical sin the great wave of consciousness ?

    • @david203
      @david203 Год назад

      Yes, subjectively that may be true. But quantum mechanics, like the rest of science, is not subjective but objective. Invoking consciousness solves NOTHING in an objective theory like QM. It is simply an unnecessary complication.

    • @jayarava
      @jayarava Год назад

      No.

  • @rangjungyeshe
    @rangjungyeshe 8 лет назад +5

    Wonderful example...of how not to do a presentation.

    • @metatron5199
      @metatron5199 8 лет назад +11

      How so? This was a talk between professionals in the field on the fundamentals of quantum theory

    • @David-km2ie
      @David-km2ie 3 года назад +2

      I liked it

    • @mandocool
      @mandocool 2 года назад +1

      His goal was to summarize and emphasize unmentioned points. He did exactly that

    • @david203
      @david203 Год назад

      Must agree. It was as if the presenter was looking at his notes for the first time, and doing his best to figure out what to talk about. Only in a few fields can one get away with being this unprepared, and talking about Bell and Bohm for sure qualifies, since no one else in physics is doing it. These are some of the most important issues in physics, but presented in a lackluster way so you can't tell how revolutionary they are.

    • @david203
      @david203 Год назад +1

      @@metatron5199 Or perhaps it was a talk to students who already understood what Bell accomplished?