Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

How do dimensions in string theory interact?

  1. Apr 17, 2004 #1
    How do dimensions in string theory interact?
  2. jcsd
  3. Apr 17, 2004 #2


    User Avatar
    Staff Emeritus
    Gold Member
    Dearly Missed

    Well one thing you don't often see discussed is that the 6-dimensional manifolds (Calabi-Yau or whatever) that the extra dimensions are compacted on are actually complex 3-dimensional manifolds. A complex dimension is two real dimensions plus some structure. And there's plenty of string research on that structure.
  4. Apr 17, 2004 #3
    String theory seems to have the best of general relativity (curvature) and quantum mechanics (discreteness). I guess that geodesics exhibit finite, quantized uncertainty at the Planck scale over dimensions of interval and dynamics, and there may resolve as piecewise sinusoidal strings under interdimensional Fourier transform. John Archibald Wheeler was prescient of such artifacts as strings in his "pregeometry."
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook