dorsal/arxiv
View SchemaAnharmonic collective excitation in a solvable model
| Authors | G. F. Bertsch, P. F. Bortignon, K. Hagino |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9811030 |
| URL | https://arxiv.org/abs/nucl-th/9811030 |
| DOI | 10.1016/S0375-9474(99)00326-7 |
| Journal | Nucl.Phys. A657 (1999) 59-72 |
Abstract
We apply the time-dependent variational principle, the nuclear field theory, and the boson expansion method to the Lipkin model to discuss anharmonicities of collective vibrational excitations. It is shown that all of these approaches lead to the same anharmonicity to leading order in the number of particles. Comparison with the exact solution of the Lipkin model shows that these theories reproduce it quite well.
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"abstract": "We apply the time-dependent variational principle, the nuclear field theory,\nand the boson expansion method to the Lipkin model to discuss anharmonicities\nof collective vibrational excitations. It is shown that all of these approaches\nlead to the same anharmonicity to leading order in the number of particles.\nComparison with the exact solution of the Lipkin model shows that these\ntheories reproduce it quite well.",
"arxiv_id": "nucl-th/9811030",
"authors": [
"G. F. Bertsch",
"P. F. Bortignon",
"K. Hagino"
],
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"doi": "10.1016/S0375-9474(99)00326-7",
"journal_ref": "Nucl.Phys. A657 (1999) 59-72",
"title": "Anharmonic collective excitation in a solvable model",
"url": "https://arxiv.org/abs/nucl-th/9811030"
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