Intrinsic Density Matrices of the Nuclear Shell Model

Details Intrinsic Density Matrices of the Nuclear Shell Model Intrinsic Density Matrices of the Nuclear Shell Model

1998-08-19

arxiv.org/abs/nucl-th/9808054v1

Lith.Phys.J. 36 (1996) 83-95

Physics

Nuclear Physics

Nuclear Theory

15 pages, LaTeX

Scientific paper

A new method for calculation of shell model intrinsic density matrices, defined as two-particle density matrices integrated over the centre-of-mass position vector of two last particles and complemented with isospin variables, has been developed. The intrinsic density matrices obtained are completely antisymmetric, translation-invariant, and do not employ a group-theoretical classification of antisymmetric states. They are used for exact realistic density matrix expansion within the framework of the reduced Hamiltonian method. The procedures based on precise arithmetic for calculation of the intrinsic density matrices that involve no numerical diagonalization or orthogonalization have been developed and implemented in the computer code.

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