dorsal/arxiv
View SchemaFragments in Gaussian Wave-Packet Dynamics with and without Correlations
| Authors | P. Danielewicz, D. Kiderlen |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9712077 |
| URL | https://arxiv.org/abs/nucl-th/9712077 |
Abstract
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.
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"abstract": "Generalization of Gaussian trial wave functions in quantum molecular dynamics\nmodels is introduced, which allows for long-range correlations characteristic\nfor composite nuclear fragments. We demonstrate a significant improvement in\nthe description of light fragments with the correlations. Utilizing either type\nof Gaussian wave functions, with or without correlations, however, we find that\nwe cannot describe fragment formation in a dynamic situation. Composite\nfragments are only produced in simulations if these fragments are present as\nclusters in the substructure of original nuclei. The difficulty is traced to\nthe delocalization of wave functions during emission. Composite fragments are\nproduced abundantly in the Gaussian molecular dynamics in the limit hbar -\u003e 0.",
"arxiv_id": "nucl-th/9712077",
"authors": [
"P. Danielewicz",
"D. Kiderlen"
],
"categories": [
"nucl-th"
],
"title": "Fragments in Gaussian Wave-Packet Dynamics with and without Correlations",
"url": "https://arxiv.org/abs/nucl-th/9712077"
},
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