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Polchinski 2.4.1 change of coordinates

  1. Feb 20, 2013 #1
    I've been working through Polchinski on my own, and I have a really basic question. How would one derive equation 2.4.1? What does it even mean to write the stress tensor with the new indices z and z-bar? I thought this was obvious, but it isn't working out for me.
     
  2. jcsd
  3. Feb 20, 2013 #2
    clarification: this is not a homework problem, and it is not for a class.
     
  4. Feb 20, 2013 #3
    got it. wow, forgot to lower indices. there is nothing deep here, as i had originally suspected.
     
  5. Feb 21, 2013 #4
    Just did something analogous last week....dontcha just wish you would have waited??
     
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