According to standard textbooks, the nuclear symmetry energy originates from the kinetic energy and the interaction itself. We argue that this view requires certain modifications. We ascribe the physical origin of the kinetic term to the discreteness of fermionic levels of, in principle arbitrary binary fermionic systems, and relate its mean value directly to the average level density. Physical...

Basic properties of the nuclear tensor mean fields are reviewed, and their role in changing the shell structure and masses of nuclei is analyzed within the spherical Hartree-Fock-Bogolyubov approach.

Articles you may be interested in Electronic correlation without double counting via a combination of spin projected Hartree-Fock and density functional theories Capturing static and dynamic correlations by a combination of projected Hartree-Fock and density functional theories J. Bounds on the overlap of the Hartree-Fock, optimized effective potential, and density functional approximations wit...

Ground state properties of SiC, AlN, GaN and InN in the zinc-blende and wurtzite structures are determined using an ab initio scheme. For the selfconsistent field part of the calculations, the Hartree-Fock program Crystal has been used. Correlation contributions are evaluated using the coupledcluster approach with single and double excitations. This is done by means of increments derived for lo...

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The concept of exchange braid statistics is generalized. The cross statistics is studied as a result of interaction. An algebraic model of a system of particles equipped with such statistics is described. The corresponding Fock space representation is also given.

We prove that the v-decomposition number dλμ(v) arising from the canonical basis of the Fock space representation of Uv(ŝle) is an even or odd polynomial according to whether the partitions λ and μ have the same relative e-sign (or e-parity) or not.