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The Fine Structure Constant

  1. Dec 13, 2007 #1
    The dimensionless pure number 1/137 obtained from the bohr theory (e^2/2hc epsilon_0) is given a particular name 'The Fine Structure Constant'.

    What is the significance of this number? Why has this value a name?
  2. jcsd
  3. Dec 13, 2007 #2


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  4. Dec 13, 2007 #3


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    It fundementally ties the charge of the electron to qunatum mechanics - it's also odd that it pops up out of nowhere with no dimensions (after a bit of fiddling with 2pi)
  5. Dec 14, 2007 #4


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