Tensor Renormalization Group and its Application
Tensor Renormalization Group and its Application
Tensor Renormalization Group and its Application
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Area Law of Entanglement EntropyFor a gapped systemd −1Sentanglement~ L ~lnDminenvironmentsystem( )Ψ =∑ Tr Am [ ]... Am [ ] m...mm Lm1L1 L 1‣ 1D (d=1) D min ~ L 0LAxx[ m ]1 2 1D×D matrix‣ 2D (d=2)D min ~ e LD min grows exponentially with the system size