activity
19982026
most citedControlling the accuracy of the density matrix renormalization group method: The Dynamical Block State Selection approach

264 citations · 2.6k across the 71 of their papers we have counts for

collaborators
Showing 2013Show all

5 papers · 1 filter

physics.chem-ph2013★ 90 cited

Four-Component Density Matrix Renormalization Group

Stefan Knecht, Ors Legeza, Markus Reiher

We present the first implementation of the relativistic quantum chemical two- and four-component density matrix renormalization group algorithm that includes a variational descript…

physics.chem-ph2013★ 20 cited

Tensor Product Approximation (DMRG) and Coupled Cluster method in Quantum Chemistry

Örs Legeza, Thorsten Rohwedder, Reinhold Schneider +1

We present the Copupled Cluster (CC) method and the Density matrix Renormalization Grooup (DMRG) method in a unified way, from the perspective of recent developments in tensor prod…

physics.chem-ph2013★ 50 cited

Unravelling the quantum-entanglement effect of noble gas coordination on the spin ground state of CUO

Pawel Tecmer, Katharina Boguslawski, Ors Legeza +1

The accurate description of the complexation of the CUO molecule by Ne and Ar noble gas matrices represents a challenging task for present-day quantum chemistry. Especially, the ac…

cond-mat.str-el2013★ 21 cited

Excited states in poly-diacetylene chains: A Density-matrix-renormalization-group study

Gergely Barcza, William Barford, Florian Gebhard +1

We study theoretically poly-diacetylene chains diluted in their monomer matrix. We employ the density-matrix renormalization group method (DMRG) on finite chains to calculate the g…

physics.chem-ph2013★ 138 cited

Orbital entanglement in bond-formation processes

Katharina Boguslawski, Pawel Tecmer, Gergely Barcza +2

The accurate calculation of the (differential) correlation energy is central to the quantum chemical description of bond-formation and bond-dissociation processes. In order to esti…