The Density Matrix Renormalization Group in Nuclear Physics: A Status Report

We report on the current status of recent efforts to develop the Density Matrix Renormalization Group method for use in large-scale nuclear shell-model calculations.Comment: 6 pages, 8 figures, $^*$ Talk presented at the XXVI$^{th}$ Symposium on Nuclear Physics, 6 pages, 8 figures, Talk presented at the XXVIth Symposium on Nuclear Physics,6-9 January 2003, Taxco, Mexic

Two-Body Density Matrix for Closed s-d Shell Nuclei

The two-body density matrix for $^{4}He,^{16}O$ and $^{40}Ca$ within the Low-order approximation of the Jastrow correlation method is considered. Closed analytical expressions for the two-body density matrix, the center of mass and relative local densities and momentum distributions are presented. The effects of the short-range correlations on the two-body nuclear characteristics are investigated.Comment: 13 pages(LaTeX), 4 figures (ps

Generalized Arago-Fresnel laws: The EME-flow-line description

We study experimentally and theoretically the influence of light polarization on the interference patterns behind a diffracting grating. Different states of polarization and configurations are been considered. The experiments are analyzed in terms of electromagnetic energy (EME) flow lines, which can be eventually identified with the paths followed by photons. This gives rise to a novel trajectory interpretation of the Arago-Fresnel laws for polarized light, which we compare with interpretations based on the concept of "which-way" (or "which-slit") information.Comment: 14 pages, 6 figure