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Permittivity Matrix

  1. Jun 6, 2007 #1
    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...
  2. jcsd
  3. Jun 7, 2007 #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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