A generation-based particle-hole density-matrix renormalization group study of interacting quantum dots
arXiv:0708.2237 · doi:10.1016/j.ssc.2007.12.031
Abstract
The particle-hole version of the density-matrix renormalization-group method (PH-DMRG) is utilized to calculate the ground-state energy of an interacting two-dimensional quantum dot. We show that a modification of the method, termed generation-based PH-DMRG, leads to significant improvement of the results, and discuss its feasibility for the treatment of large systems. As another application we calculate the addition spectrum.
6 pages, 6 figures and a table