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

Journal Article · Sun Apr 15 00:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.75.047305· OSTI ID:20995247

Johnson, Calvin W; Nam, Hai Ah ^[1]

---

1. Physics Department, San Diego State University, 5500 Campanile Drive, San Diego, California 92182-1233 (United States)

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 J{>=}6 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.

• OSTI ID: 20995247
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 75, Issue 4; Other Information: DOI: 10.1103/PhysRevC.75.047305; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BOSONS
CORRELATIONS
EXCITATION
FERMIONS
INTERACTIONS
RANDOMNESS
ROTATION
TWO-BODY PROBLEM