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Zwiebach page 292

  1. Nov 26, 2007 #1
    1. The problem statement, all variables and given/known data
    In equation 14.81, why are the lower indices of the oscillators alpha^r and alpha^s not divided by 2 like they were in equation 14.77?

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Nov 26, 2007 #2


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    In my edition, equation 14.81 has no alpha (it has integrals with exponentials) . But my equation 14.82 has the commutator of alpha^r and alpha^s and they have, respectively, the subscripts m/2 and n/2.
    I am not sure if you have that.
  4. Nov 26, 2007 #3
    I'm sorry. I meant 14.80. Mine has subscripts of m and n (not divided by 2) so it must be a typo. That would make much more sense since the commutator of 14.82 in my book does have subscripts that are divided by 2.
    Last edited: Nov 26, 2007
  5. Nov 27, 2007 #4
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