Nuclear density-functional theory and fission of super-heavy elements
نویسندگان
چکیده
منابع مشابه
Nuclear fission in covariant density functional theory
The current status of the application of covariant density functional theory to microscopic description of nuclear fission with main emphasis on superheavy nuclei (SHN) is reviewed. The softness of SHN in the triaxial plane leads to an emergence of several competing fission pathes in the region of the inner fission barrier in some of these nuclei. The outer fission barriers of SHN are considera...
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Self-consistent mean field models have reached a high descriptive power for nuclear ground state properties and collective excitations, for reviews see [1, 2]. Their application to a fully microscopic description of fission is a very demanding task and it is only in the last years that new investigations on this topic appear, see e.g. [3, 4, 5]. We report here briefly on recent development of a...
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The spontaneous fission lifetimes have been studied microscopically by minimizing the collective action integral in a two-dimensional collective space of quadrupole moments (Q20, Q22) representing elongation and triaxiality. The microscopic collective potential and inertia tensor are obtained by solving the self-consistent HartreeFock-Bogoliubov (HFB) equations with the Skyrme energy density fu...
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The density functional theory (DFT) has become the workhorse in electronic structure calculations. Its success derives from the ability to produce accurate results with reasonable computational effort. The drawback of the DFT is that in principle it is bound to the ground-state properties. However, the time-dependent DFT (TDDFT) extends the applicatibility of the DFT to excited states. In recen...
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We present for static density functional theory and time-dependent density functional theory calculations an all-electron method which employs high-order hierarchical finite-element bases. Our mesh generation scheme, in which structured atomic meshes are merged to an unstructured molecular mesh, allows a highly nonuniform discretization of the space. Thus it is possible to represent the core an...
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ژورنال
عنوان ژورنال: The European Physical Journal A
سال: 2018
ISSN: 1434-6001,1434-601X
DOI: 10.1140/epja/i2018-12421-x