Fokker-planck approach to quantum lattice hamiltonians

@article{Jimenez1996FokkerplanckAT,
  title={Fokker-planck approach to quantum lattice hamiltonians},
  author={Fernando Jim'enez and Germ{\'a}n Sierra},
  journal={Nuclear Physics},
  year={1996},
  volume={458},
  pages={640-668}
}
Abstract Fokker-Planck equations have been applied in the past to field theory topics such as the stochastic quantization and the stabilization of bottomless action theories. In this paper we give another application of the FP-techniques in a way appropriate to the study of the ground state, the excited states and the critical behaviour of quantum lattice hamiltonians. Our approach is based on the choice of an exponential or Jastrow-like state which becomes the exact ground state of a discrete… 

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