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How did string theory get so far without any principles or equations?

  1. Top Mathematician
    ptqg

    Postulate: Lagrangian submanifolds in symplectic geometry have physical meaning.

    Lol that's not a postulate, it's a BS PR news release.

    2 weeksptqg
    Quote 3 Up 1 Down Report
  2. Top Mathematician
    lrjy

    Postulate: Lagrangian submanifolds in symplectic geometry have physical meaning.

    Symplectic geometry was literally created from studying classical mechanics, most things in the subject have physical meaning.

    2 weekslrjy
    Quote 4 Up 0 Down Report
  3. Top Mathematician
    dkxm

    String theorists does more harm to humanity than (I can't say but you know what).

    2 weeksdkxm
    Quote 0 Up 0 Down Report
  4. Top Mathematician
    xhjf

    Postulate: Lagrangian submanifolds in symplectic geometry have physical meaning.

    Symplectic geometry was literally created from studying classical mechanics, most things in the subject have physical meaning.

    So it’s perfectly sensible for physicists to study Fukaya categories, eg.

    2 weeksxhjf
    Quote 1 Up 0 Down Report
  5. Top Mathematician
    paup

    Maybe instead of asking the same retarded question every week, you should go learn quantum field theory and string theory and realize why your question is retarded.

    That's hilarious that you still refuse to provide any principles, postulates, or equations. Are u Michio Kaku? lol

    2 weekspaup
    Quote 2 Up 1 Down Report
  6. Top Mathematician
    rteb

    The deformed Hermitian Yang--Mills equation is an equation from string theory

    2 weeksrteb
    Quote 3 Up 0 Down Report
  7. Top Mathematician
    lrjy

    Maybe instead of asking the same retarded question every week, you should go learn quantum field theory and string theory and realize why your question is retarded.

    That's hilarious that you still refuse to provide any principles, postulates, or equations. Are u Michio Kaku? lol

    Even asking the question implies you do not understand quantum field theory, which means attempting to explain anything about string theory to you is futile.

    2 weekslrjy
    Quote 3 Up 0 Down Report
  8. Top Mathematician
    ksyh
    [...]

    That's hilarious that you still refuse to provide any principles, postulates, or equations. Are u Michio Kaku? lol

    Even asking the question implies you do not understand quantum field theory, which means attempting to explain anything about string theory to you is futile.

    I’m a phd over here. I would like to know: what are string theory’s principles, postulates, predictions, and equations?

    2 weeksksyh
    Quote 4 Up 4 Down Report
  9. Top Mathematician
    paup
    [...]

    Even asking the question implies you do not understand quantum field theory, which means attempting to explain anything about string theory to you is futile.

    I’m a phd over here. I would like to know: what are string theory’s principles, postulates, predictions, and equations?

    Yes somebody please just share string theory’s principles, postulates, predictions, and equations.

    2 weekspaup
    Quote 2 Up 7 Down Report
  10. Top Mathematician
    edaq

    If you asking sincerely, you should first specify what do yo already know (what areas of math you work in? What do you know from physics: classical mechanics, quantum mechanics, electrodynamics, statistical physics, quantum mechanics, quantum field theory, gauge theory, conformal field theory) and whar exactly are you interested in (firet of all, if you are interrsted in string theory as the ultimate theory of everyrhing, as in toy model to develop sone new computational methods, or in various areas of stringy math, because these are three very different directions).

    The short universal answer is the functional integral with Polyakov or Nambu-Goto action, which is at the same time principle, equation and source of predictions. Everything else is an attemp to make sense of it.

    2 weeksedaq
    Quote 1 Up 1 Down Report
  11. Top Mathematician
    jznw

    OP please share your mom for a week with me and I will share everything about strings.

    2 weeksjznw
    Quote 0 Up 2 Down Report
  12. Top Mathematician
    paup

    If you asking sincerely, you should first specify what do yo already know (what areas of math you work in? What do you know from physics: classical mechanics, quantum mechanics, electrodynamics, statistical physics, quantum mechanics, quantum field theory, gauge theory, conformal field theory) and whar exactly are you interested in (firet of all, if you are interrsted in string theory as the ultimate theory of everyrhing, as in toy model to develop sone new computational methods, or in various areas of stringy math, because these are three very different directions).

    The short universal answer is the functional integral with Polyakov or Nambu-Goto action, which is at the same time principle, equation and source of predictions. Everything else is an attemp to make sense of it.

    So the functional integral with Polyakov or Nambu-Goto action makes no sense and all of string theory is devoted to trying to make sense of the nonsensical?

    2 weekspaup
    Quote 0 Up 0 Down Report
  13. Top Mathematician
    waut

    If you asking sincerely, you should first specify what do yo already know (what areas of math you work in?

    You are talking to Alexander Unzicker, a garden-variety crank. He does not work in mathematics.

    2 weekswaut
    Quote 6 Up 0 Down Report
  14. Top Mathematician
    pfed

    If you asking sincerely, you should first specify what do yo already know (what areas of math you work in? What do you know from physics: classical mechanics, quantum mechanics, electrodynamics, statistical physics, quantum mechanics, quantum field theory, gauge theory, conformal field theory) and whar exactly are you interested in (firet of all, if you are interrsted in string theory as the ultimate theory of everyrhing, as in toy model to develop sone new computational methods, or in various areas of stringy math, because these are three very different directions).

    The short universal answer is the functional integral with Polyakov or Nambu-Goto action, which is at the same time principle, equation and source of predictions. Everything else is an attemp to make sense of it.

    So the functional integral with Polyakov or Nambu-Goto action makes no sense and all of string theory is devoted to trying to make sense of the nonsensical?

    Yous should answer the questions first.

    2 weekspfed
    Quote 0 Up 1 Down Report
  15. Top Mathematician
    vxfa

    If you asking sincerely, you should first specify what do yo already know (what areas of math you work in?

    You are talking to Alexander Unzicker, a garden-variety crank. He does not work in mathematics.

    Does Michio Kaku work in mathematics?

    2 weeksvxfa
    Quote 1 Up 1 Down Report
  16. Top Mathematician
    dnaz

    If you asking sincerely, you should first specify what do yo already know (what areas of math you work in?

    You are talking to Alexander Unzicker, a garden-variety crank. He does not work in mathematics.

    Do Brian Greene or Peter Woit work in mathematics?

    2 weeksdnaz
    Quote 0 Up 0 Down Report
  17. Top Mathematician
    xhkc

    Of course Michio Kaku doesn't work in mathematics. Some parts of Greene's work are mathematical, but he is unambiguously not a mathematician. Woit is a high-quality blogger, not a mathematician or a physicist.

    2 weeksxhkc
    Quote 3 Up 0 Down Report
  18. Top Mathematician
    lrjy

    The short universal answer is the functional integral with Polyakov or Nambu-Goto action, which is at the same time principle, equation and source of predictions. Everything else is an attemp to make sense of it.

    This is like saying everything about quantum field theory is an attempt to make sense of the path integral for a free particle.

    2 weekslrjy
    Quote 0 Up 1 Down Report
  19. Top Mathematician
    bxko

    The short universal answer is the functional integral with Polyakov or Nambu-Goto action, which is at the same time principle, equation and source of predictions. Everything else is an attemp to make sense of it.

    This is like saying everything about quantum field theory is an attempt to make sense of the path integral for a free particle.

    Nope, the string path integral is not about free strings only. It allows to compute all string amplitudes in perturbatuon theory. This, by the way, one of simple predicrions of string theory, together wirh very peculiar spectrum of states (too bad both can be distinguished from the corresponding effective QFT at too high energies to actualy verify the predictions).

    The QFT counterpart of that is the worldline formalism, not

    Both, of coursez fail in highly non-perturbative regimes. But making the theory work non-perturbatively is part of making sense of it.

    2 weeksbxko
    Quote 0 Up 0 Down Report
  20. Top Mathematician
    dgan
    [...]

    This is like saying everything about quantum field theory is an attempt to make sense of the path integral for a free particle.

    Nope, the string path integral is not about free strings only. It allows to compute all string amplitudes in perturbatuon theory. This, by the way, one of simple predicrions of string theory, together wirh very peculiar spectrum of states (too bad both can be distinguished from the corresponding effective QFT at too high energies to actualy verify the predictions).

    The QFT counterpart of that is the worldline formalism, not

    Both, of coursez fail in highly non-perturbative regimes. But making the theory work non-perturbatively is part of making sense of it.

    So basically string theory has no principles, postulates, predictions, nor equations.

    2 weeksdgan
    Quote 1 Up 3 Down Report
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