Monday, March 25, 2019

homework and exercises - Energy-momentum tensor transformation




I've been trying to find how the energy-momentum tensor changes if we add a total derivative to the lagrangian: LL+dμXμ.




From the answer key: TμνTμν+λFλμν Where Fλμν=Xλ(μϕ)νϕXμ(λϕ)νϕ. Is the above answer right? I'm not able to get this result! any help?




No comments:

Post a Comment

classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...