Abstract
We suggested earlier that the energies of low-lying states in large shell-model spaces converge to their exact values exponentially as a function of the dimension in progressive truncation. An algorithm based on this exponential convergence method was proposed and successfully used for describing the ground state energies in the lowest nuclides from to using the -shell model and the FPD6 interaction. We extend this algorithm to describe nonyrast states, especially those that exhibit a large collectivity, such as the superdeformed band in We also show that a similar algorithm can be used to calculate expectation values of observables, such as single-particle occupation probabilities.
- Received 3 October 2002
DOI:https://doi.org/10.1103/PhysRevC.67.034303
©2003 American Physical Society