Permittivity Matrix

  • Thread starter Blukstak
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Main Question or Discussion Point

I cant seem to demonstrate that in anisotropic materials the permittivity matrix is symmetric, apparently this is done with the poyinting vector...

I really need to understand it thanks...
 

Answers and Replies

  • #2
Meir Achuz
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There are arguments for the symmetry of epsilon, but they tend to be circular.
This is because electromagnetic energy can ony be defined if epsilon is symmetric.
 

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