New puzzle for many-body systems with random two-body interactions

Calvin W. Johnson and Hai Ah Nam
Phys. Rev. C 75, 047305 – Published 25 April 2007

Abstract

We continue a series of numerical experiments on many-body systems with random two-body interactions, by examining correlations in ratios in excitation energies of yrast J=0,2,4,6,8 states. Previous studies, limited only to J=0,2,4 states, had shown strong correlations in boson systems but not fermion systems. By including J6 states and considering different scatter plots, strong correlations between ratios of yrast excitation energies appear in both boson and fermion systems. Such correlations agree with real nuclear data and include the well-known limits of seniority, vibrations, and rotations.

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  • Received 18 December 2006

DOI:https://doi.org/10.1103/PhysRevC.75.047305

©2007 American Physical Society

Authors & Affiliations

Calvin W. Johnson and Hai Ah Nam

  • Physics Department, San Diego State University, 5500 Campanile Drive, San Diego, California 92182-1233, USA

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Issue

Vol. 75, Iss. 4 — April 2007

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