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Criticality, the area law, and the computational power of PEPS

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 نشر من قبل Verstraete Frank
 تاريخ النشر 2006
  مجال البحث فيزياء
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The projected entangled pair state (PEPS) representation of quantum states on two-dimensional lattices induces an entanglement based hierarchy in state space. We show that the lowest levels of this hierarchy exhibit an enormously rich structure including states with critical and topological properties as well as resonating valence bond states. We prove, in particular, that coheren



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