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Certain of dimensional fields as expressed in recent theories?

  1. Nov 14, 2003 #1
    Are we so certain of dimensional fields as expressed in recent
    theories? true we know of three for certain, but can it be
    possible the 10 or 11 maybe even more dimensions are
    mirroring the 3 principle dimensions?
     
  2. jcsd
  3. Nov 15, 2003 #2

    selfAdjoint

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    The extra dimensions, beyond four, is a firm prediction of stringy physics (strings, supertstring, branes, M-theory, string field theory, AdS/CFT, and anything I've left out). If the extra dimensions were solidly shown not to exist, then string physics would have failed.

    Stringy physics has not failed, but it has not proven itself in the test of experiment yet either. The string theory experts make the argument that even experimental success only confers plausibility (no theory can be "proven true", only proven false) and they claim string physics is intensely plausible to anyone who truly understands it. That's a tall order because popular accounts like the PBS special "Elegant Universe" can't give you the critical understanding you would need to verify this. Indeed in current disputes with non-string physicists, the stringy folks insist the others (professional physicists all) just don't really understand string theory.
     
  4. Dec 27, 2003 #3
    One Dimension is Good Enough

    I'm doing research on quantized space. In this research, I attributed space as one dimensional. And time is also one dimensional. The one-dim space is a subset of a two-dim space and two-dim space is a subset of three-dim space. Any one-dim object such as a vector of a force, a metric, a velocity, an acceleration can have infinite degrees of freedom when embedded in two dim-space or in three-dim space. while the one-dim time has only two degrees of freedom and no more.

    Matter is derived from quantized space (one-dim) but it is embedded in a continuous space (two-dim and three-dim spaces). The force that separate quantized space from continuous space is the strong nuclear force with its property of asymptotic freedom. There can be two distinct types of space charges. let's call them H+ and H-. The force that binds H+ to H- is the weak nuclear force. But when there are eight H's, either plus or minus, the electromagnetic force is created. The attractive gravitational force can be found only inside the H+ or the H-. The physical principle controlling the formation of H+ and H- is the principle of directional invariance. Each of these H's can be described by the product of two Lagrangian functions.
    And when these products are added together, a square Hamiltonian is formed giving the total energy of the universe as a constant.
     
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