4th rank Tensor

SteDolan

Hi,

Can somebody give me an example of a rank 4 tensor in physics?

Thanks.

Bill_K

Sure, one would be the Riemann curvature tensor R_ijkl that's used in general relativity.

SteDolan

Thanks.

It was an odd small part of an exam question when my module had only covered examples up to 3rd rank.

orhit

Third order nonlinear susceptibility is another example of 4th rank tensor.