Anharmonic collective excitation in a solvable model
Nuclear Theory
2009-10-31 v4
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.
Keywords
Cite
@article{arxiv.nucl-th/9811030,
title = {Anharmonic collective excitation in a solvable model},
author = {G. F. Bertsch and P. F. Bortignon and K. Hagino},
journal= {arXiv preprint arXiv:nucl-th/9811030},
year = {2009}
}
Comments
RevTex, 18 pages, 4 postscript figures