Low Density Instability in a Nuclear Fermi Liquid Drop
نویسندگان
چکیده
The instability of a Fermi-liquid drop with respect to bulk density distortions is considered. It is shown that the presence of the surface strongly reduces the growth rate of the bulk instability of the finite Fermi-liquid drop because of the anomalous dispersion term in the dispersion relation. The instability growth rate is reduced due to the Fermi surface distortions and the relaxation processes. The dependence of the bulk instability on the multipolarity of the particle density fluctuations is demonstrated for two nuclei 40Ca and 208Pb. PACS number: 25.70-z, 25.70.Mn, 24.75.+i Typeset using REVTEX 1
منابع مشابه
Dynamics and Instabilities of Nuclear Fermi Liquid
The kinetic theory of Fermi liquid is applied to finite nuclei. The nuclear collective dynamics is treated in terms of the observable variables: particle density, current density, pressure etc. The relaxation processes and the development of instabilities in nuclear Fermi-liquid drop are strongly influenced by the Fermi-surface distortion effects. PACS numbers: 21.60.-n,21.60.Ev,24.30Cz Typeset...
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