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Non-abelian Berrys phase and Chern numbers in higher spin pairing condensates

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 نشر من قبل Chyh-Hong Chern
 تاريخ النشر 2003
  مجال البحث فيزياء
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We show that the non-Abelian Berry phase emerges naturally in the s-wave and spin quintet pairing channel of spin-3/2 fermions. The topological structure of this pairing condensate is characterized by the second Chern number. This topological structure can be realized in ultra-cold atomic systems and in solid state systems with at least two Kramers doublets.



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