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A proof of the Kramers degeneracy of transmission eigenvalues from antisymmetry of the scattering matrix

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 نشر من قبل Jens Hjorleifur Bardarson
 تاريخ النشر 2008
  مجال البحث فيزياء
والبحث باللغة English
 تأليف J. H. Bardarson




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In time reversal symmetric systems with half integral spins (or more concretely, systems with an antiunitary symmetry that squares to -1 and commutes with the Hamiltonian) the transmission eigenvalues of the scattering matrix come in pairs. We present a proof of this fact that is valid both for even and odd number of modes and relies solely on the antisymmetry of the scattering matrix imposed by time reversal symmetry.

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