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Finite Size Scaling of Topological Entanglement Entropy

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 نشر من قبل Yuting Wang
 تاريخ النشر 2016
  مجال البحث فيزياء
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We consider scaling of the entanglement entropy across a topological quantum phase transition in one dimension. The change of the topology manifests itself in a sub-leading term, which scales as $L^{-1/alpha}$ with the size of the subsystem $L$, here $alpha$ is the R{e}nyi index. This term reveals the universal scaling function $h_alpha(L/xi)$, where $xi$ is the correlation length, which is sensitive to the topological index.



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