Entanglement renormalization.

  title={Entanglement renormalization.},
  author={Guifr{\'e} Vidal},
  journal={Physical review letters},
  volume={99 22},
  • G. Vidal
  • Published 8 December 2005
  • Physics
  • Physical review letters
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… 

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