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.
Dipartimento di Fisica, Università di Trento, via Sommarive 14, I-38050 Povo, Trento Italy. gandolfi@science.unitn.it
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Gandolfi
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Pederiva
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Fantoni
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Schmidt