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

S. Drozdz·S. Nishizaki·J. Wambach
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Abstract

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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S. Drozdz, S. Nishizaki, J. Wambach. 1993-12-22. Chaos Driven Decay of Nuclear Giant Resonances: Route to Quantum Self-Organization. https://doi.org/10.1103/physrevlett.72.2839

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