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Multiband models for field theories with anomalous current dimension

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 نشر من قبل Andreas Karch
 تاريخ النشر 2015
  مجال البحث فيزياء
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 تأليف Andreas Karch




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We give simple examples of weakly coupled or free quantum mechanical systems that exhibit scale invariance with an anomalous dimension for a conserved current. In these models scaling as an exact symmetry only emerges in a large N limit, but it remains as an approximate symmetry even at finite N.

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