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

Einstein summation notation

  1. Feb 28, 2015 #1

    dyn

    User Avatar

    I have been looking through some notes on fermion wavefunction operators and noticed some summations involving indexes repeated 3 times.I know this is not allowed when using the Einstein summation convention. So my question is : is the Einstein convention not used in Quantum mechanics ? and do situations ever arise in relativity when an index appears 3 times and what then happens to the convention ?
     
  2. jcsd
  3. Feb 28, 2015 #2

    Orodruin

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper
    Gold Member

    Can you give any specific examples?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Einstein summation notation
  1. Einstein on QM (Replies: 13)

  2. Einstein's vision (Replies: 3)

  3. Summation or integrand (Replies: 2)

Loading...