Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1997-12-24
Physics
Nuclear Physics
Nuclear Theory
10 pages, 3 Postscript figures, Latex, uses sprocl.sty and epsf.sty, talk given at the 17th Int. Symposium on Innovative Compu
Scientific paper
Generalization of Gaussian trial wave functions in quantum molecular dynamics models is introduced, which allows for long-range correlations characteristic for composite nuclear fragments. We demonstrate a significant improvement in the description of light fragments with the correlations. Utilizing either type of Gaussian wave functions, with or without correlations, however, we find that we cannot describe fragment formation in a dynamic situation. Composite fragments are only produced in simulations if these fragments are present as clusters in the substructure of original nuclei. The difficulty is traced to the delocalization of wave functions during emission. Composite fragments are produced abundantly in the Gaussian molecular dynamics in the limit hbar -> 0.
Danielewicz Pawel
Kiderlen Dieter
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