ISSN:
1434-601X
Keywords:
2.60+y
;
21.40.+d
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We have performed Monte Carlo calculations to estimate the exact energies of model problems for4He and theL=0,1, and 2 states of6Li. Using a Feynman path-integral expression for the imaginary-time evolution operator, we recast the ground state energy as a sum over histories, which are then sampled stochastically. Use of a trial wave function dramatically improves the efficiency of the Monte Carlo method. For a state-independent Malfliet-Tjon potential, together with the Coulomb interaction, we find a ground state energy of −28.00+0.20 MeV for4He, and a degeneracy of theL=0,1, and 2 states in6Li at about −59.65+-0.50 MeV. Density distributions for these nuclei are also calculated.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01432445
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