density functional theory 1electronic structure 1high-performance computing 1open-source software 1plane-wave methods 1pseudopotentials 1
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cond-mat.str-el1998★ 58 cited
Charge fluctuations close to phase separation in the two dimensional t-J model
M. Calandra, F. Becca, S. Sorella
We have studied the t-J model using the Green Function Monte Carlo technique. We have obtained accurate energies well converged in the thermodynamic limit, by performing simulation…
cond-mat1998
Numerical study of the two dimensional Heisenberg model by Green Function Monte Carlo at fixed number of walkers
M. Calandra, S. Sorella
We describe in detail a simple and efficient Green Function Monte Carlo technique for computing both the ground state energy and the ground state properties by the ``forward walkin…