Regular spectra in the vibron model with random interactions
  The phenomenom of emerging regular spectral features from random interactions is addressed in the context of the vibron model. A mean-field analysis links different regions of the parameter space with definite geometric shapes. The results that are, to a large extent, obtained in closed analytic form, provide a clear and transparent interpretation of the high degree of order that has been observed in numerical studies. 
R. Bijker and A. Frank (ICN-Unam, CCF-Unam, Mexico)