A generation-based particle-hole density-matrix renormalization group study of interacting quantum dots

Details A generation-based particle-hole density-matrix renormalization group study of interacting quantum dots A generation-based particle-hole density-matrix renormalization group study of interacting quantum dots

2007-08-16

arxiv.org/abs/0708.2237v1

Solid State Commun. 145, 585 (2008)

Physics

Condensed Matter

Disordered Systems and Neural Networks

6 pages, 6 figures and a table

Scientific paper

10.1016/j.ssc.2007.12.031

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.

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