- #1
decerto
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Homework Statement
Hi, I'm trying to show the four divergence of the stress energy tensor of the sourceless klein gordon equation is zero. I got to the part in the solution where I am left with the equations of motion which is identically zero and 3 other terms.
I managed to find a solution online
See equation (30) to (32) in this pdf for where I am stuck
Firstly I have no idea where the factor of a half goes from (30) to (32) and secondly if it is legitimately gone for some reason, then the second and third term in (31) are equal and opposite which leaves you with just the 4th term, how does this equal to zero?
Homework Equations
In the hyperlink
The Attempt at a Solution
In the hyperlink