Non-Linear Mean Field Dynamics in the Nuclear Spinodal Zone

Details Non-Linear Mean Field Dynamics in the Nuclear Spinodal Zone Non-Linear Mean Field Dynamics in the Nuclear Spinodal Zone

1993-06-07

arxiv.org/abs/nucl-th/9306008v1

Phys. Lett. B 321 (1994) 307

Physics

Nuclear Physics

Nuclear Theory

11 pages (3 figures not included but available upon request). In RevTex (version 3.0). Catania University preprint no.93/20

Scientific paper

10.1016/0370-2693(94)90247-X

We demonstrate, by numerical simulations, that the dynamics of nuclear matter mean field inside the spinodal region is chaotic. Spontaneous symmetry-breaking - no explicit fluctuating term is considered - occurs leading to wild unpredictable density fluctuations. A proper recipe to calculate an average Lyapunov exponent in this multidimensional phase space is introduced. The latter is calculated for different values of the density in order to characterize in a quantitative way the chaotic and regular regions. It is argued that the mean field chaoticity can be the main mechanism of the nuclear multifragmentation occurring in the intermediate energy reactions.

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