Entanglement renormalization.

  title={Entanglement renormalization.},
  author={Gerard Vidal},
  journal={Physical review letters},
  volume={99 22},
We propose a real-space renormalization group (RG) transformation for quantum systems on a D-dimensional lattice. The transformation partially disentangles a block of sites before coarse-graining it into an effective site. Numerical simulations with the ground state of a 1D lattice at criticality show that the resulting coarse-grained sites require a Hilbert space dimension that does not grow with successive RG transformations. As a result we can address, in a quasi-exact way, tens of thousands… CONTINUE READING
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