Auxiliary field diffusion Monte Carlo calculation of nuclei with A < or = 40 with tensor interactions.
We calculate the ground-state energy of (4)He, (8)He, (16)O, and (40)Ca using the auxiliary field diffusion Monte Carlo method in the fixed-phase approximation and the Argonne v(6)' interaction which includes a tensor force. Comparison of our light nuclei results to those of Green's function Monte Carlo calculations shows the accuracy of our method for both open and closed-shell nuclei. We also apply it to (16)O and (40)Ca to show that quantum Monte Carlo methods are now applicable to larger nuclei.
Gandolfi
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Dipartimento di Fisica, Università di Trento, via Sommarive 14, I-38050 Povo, Trento Italy. gandolfi@science.unitn.it
Pederiva
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Fantoni
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Schmidt
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KE