Green’s-function Monte Carlo for lattice fermions: Application to the t − J model

@article{Hellberg2000GreensfunctionMC,
  title={Green’s-function Monte Carlo for lattice fermions: Application to the t − J model},
  author={C. Stephen Hellberg and Efstratios Manousakis},
  journal={Physical Review B},
  year={2000},
  volume={61},
  pages={11787-11806}
}
We develop a general numerical method to study the zero temperature properties of strongly correlated electron models on large lattices. The technique, which resembles Green’s Function Monte Carlo, projects the ground state component from a trial wave function with no approximations. We use this method to determine the phase diagram of the two-dimensional t-J model, using the Maxwell construction to investigate electronic phase separation. The shell effects of fermions on finite-sized periodic… 
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