Chaos Driven Decay of Nuclear Giant Resonances: Route to Quantum Self-Organization

Details Chaos Driven Decay of Nuclear Giant Resonances: Route to Quantum Self-Organization Chaos Driven Decay of Nuclear Giant Resonances: Route to Quantum Self-Organization

1993-12-22

arxiv.org/abs/nucl-th/9312020v1

Phys.Rev.Lett.72:2839-2842,1994

Physics

Nuclear Physics

Nuclear Theory

14 pages, 4 Figures, Illinois preprint P-93-12-106, Figures available from the authors

Scientific paper

10.1103/PhysRevLett.72.2839

The influence of background states with increasing level of complexity on the strength distribution of the isoscalar and isovector giant quadrupole resonance in $^{40}$Ca is studied. It is found that the background characteristics, typical for chaotic systems, strongly affects the fluctuation properties of the strength distribution. In particular, the small components of the wave function obey a scaling law analogous to self-organized systems at the critical state. This appears to be consistent with the Porter-Thomas distribution of the transition strength.

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