Angular Momentum Projected Configuration Interaction with Realistic Hamiltonians

Abstract

The Projected Configuration Interaction (PCI) method starts from a collection of mean-field wave functions, and builds up correlated wave functions of good symmetry. It relies on the Generator Coordinator Method (GCM) techniques, but it improves the past approaches by a very efficient method of selecting the basis states. We use the same realistic Hamiltonians and model spaces as the Configuration Interaction (CI) method, and compare the results with the full CI calculations in the sd and pf shell. Examples of 24Mg, 28Si, 48Cr, 52Fe and 56Ni are discussed.

10 pages, 10 figures. Revised version. To be published in Physical Review C

References in corpus (7)

• Effective interaction for pf-shell nuclei
• Intrinsic vs. laboratory frame description of the deformed nucleus 48Cr
• Triaxial projected shell model approach
• Nuclear Shell Model by the Quantum Monte Carlo Diagonalization Method
• Signature inversion -- manifestation of drift of the rotational axis in triaxial nuclei
• Effective shell model Hamiltonians from density functional theory: quadrupolar and pairing correlations
• Shell-model Hamiltonians from Density Functional Theory

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