ENCORE: An extended contractor renormalization algorithm.

  title={ENCORE: An extended contractor renormalization algorithm.},
  author={Antognoni Albuquerque and Helmut G. Katzgraber and Matthias Troyer},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={79 4 Pt 2},
  • Antognoni Albuquerque, Helmut G. Katzgraber, Matthias Troyer
  • Published 2009
  • Physics, Medicine, Mathematics
  • Physical review. E, Statistical, nonlinear, and soft matter physics
  • Contractor renormalization (CORE) is a real-space renormalization-group method to derive effective Hamiltionians for microscopic models. The original CORE method is based on a real-space decomposition of the lattice into small blocks and the effective degrees of freedom on the lattice are tensor products of those on the small blocks. We present an extension of the CORE method that overcomes this restriction. Our generalization allows the application of CORE to derive arbitrary effective models… CONTINUE READING

    Figures and Topics from this paper.