Methods and results for calculations of the ground state energy of the bulk System of He-3 atoms are discussed. Results are encouraging: we believe that they demonstrate that our methods offer a solution of the "fermion sign problem" and the possibility of direct computation of many-fermion systems with no uncontrolled approximations. Although the method is still rather inefficient compared to variational or fixed-node methods, we have been able to obtain useful answers.
Fermion Monte Carlo calculations of liquid He-3
Colletti, Leonardo;Pederiva, Francesco
2005-01-01
Abstract
Methods and results for calculations of the ground state energy of the bulk System of He-3 atoms are discussed. Results are encouraging: we believe that they demonstrate that our methods offer a solution of the "fermion sign problem" and the possibility of direct computation of many-fermion systems with no uncontrolled approximations. Although the method is still rather inefficient compared to variational or fixed-node methods, we have been able to obtain useful answers.File in questo prodotto:
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