Density Matrix Renormalization Group study of ${}^{48}$Cr and ${}^{56}$Ni

Abstract

We discuss the development of an angular-momentum-conserving variant of the Density Matrix Renormalization Group (DMRG) method for use in large-scale shell-model calculations of atomic nuclei and report a first application of the method to the ground state of ${}^{56}$Ni and improved results for ${}^{48}$Cr. In both cases, we see a high level of agreement with the exact results. A comparison of the two shows a dramatic reduction in the fraction of the space required to achieve accuracy as the size of the problem grows.

Comments: 4 pages. Published in PRC Rapid