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What exactly is a D-Brane

  1. Jun 2, 2005 #1
    What exactly is a D-Brane I understand its a short term for some sort of p-brane but what is a brane and what do they do?
  2. jcsd
  3. Jun 8, 2005 #2
    I believe a brane is 2 dimensional or higher string.

    You can think of it as a string being a circle, and a brane being a sphere.
    p in p-brane stands for dimension, so a 2-brane is a 2 dimensional brane, 3-brane is a 3 dimensional brane, and so on.

    Branes come about in M-Theory when the string theorists use non-pertubative measurements for coupling constants.
    Last edited: Jun 8, 2005
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