Double binding energy differences: Mean-field or pairing effect?
نویسندگان
چکیده
منابع مشابه
Pairing Correlations beyond the Mean Field
Self-consistent mean-field models are one of the standard approaches in nuclear structure theory, see Ref.1 for a recent review. For heavy nuclei, they are the only microscopic method that can be systematically applied on a large scale. Over the last few years, we were involved in the development of a method, that adds long-range correlations to self-consistent mean-field by projection after va...
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We discuss the pairing gap, a measure for nuclear pairing correlations, in chains of spherical, semi–magic nuclei in the framework of self–consistent nuclear mean–field models. The equations for the conventional BCS model and the approximate projection–before–variation Lipkin–Nogami method are formulated in terms of local density functionals for the effective interaction. We calculate the Lipki...
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The evolution of the pairing correlations from closed shell to midshell nuclei is analyzed in the Sn isotopes with the Finite Range Density Dependent Gogny force. As theoretical approaches we use the Hartree-Fock-Bogoliubov, the Lipkin-Nogami, their particle number projected counterparts and the full variation after particle number projection method. We find that whereas all approaches succeed ...
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The ground state energies of two interacting electrons confined in a coupled double quantum dot (DQD) presented in a magnetic field has been calculated by solving the relative Hamiltonian using variational and exact diagonalization methods. The singlet-triplet transitions in the angular momentum and spin of the quantum dot ground state had been shown .We have studied the magnetic field versus c...
متن کاملEnergy states and exchange energy of coupled double quantum dot in a magnetic field
The ground state energies of two interacting electrons confined in a coupled double quantum dot (DQD) presented in a magnetic field has been calculated by solving the relative Hamiltonian using variational and exact diagonalization methods. The singlet-triplet transitions in the angular momentum and spin of the quantum dot ground state had been shown .We have studied the magnetic field versus c...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2012
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2012.10.011