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Ising versus $SU(2)_2$ string-net ladder

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 نشر من قبل Julien Vidal
 تاريخ النشر 2018
  مجال البحث فيزياء
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 تأليف J. Vidal




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We consider the string-net model obtained from $SU(2)_2$ fusion rules. These fusion rules are shared by two different sets of anyon theories. In this work, we study the competition between the two corresponding non-Abelian quantum phases in the ladder geometry. A detailed symmetry analysis shows that the nontrivial low-energy sector corresponds to the transverse-field cluster model that displays a critical point described by the $so(2)_1$ conformal field theory. Other sectors are obtained by freezing spins in this model.

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