J
Jörg Rissler
Researcher at University of Marburg
Publications - 8
Citations - 389
Jörg Rissler is an academic researcher from University of Marburg. The author has contributed to research in topics: Density matrix renormalization group & Hubbard model. The author has an hindex of 5, co-authored 8 publications receiving 364 citations.
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Measuring orbital interaction using quantum information theory
TL;DR: In this article, the von Neumann entropies for the interaction of electrons in two orbitals p,q for a given many-body wave function are calculated. But the von-Neumann Entropies are not defined in this paper.
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Effective conjugation length of π-conjugated systems
TL;DR: In this article, the optical absorption of ordered and disordered π-conjugated molecules is described on the same microscopic footing, and a concise picture of the length dependence of optical absorption is given.
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Excited states of ladder-type poly- p -phenylene oligomers
TL;DR: In this paper, the ground state properties and excited states of ladder-type paraphenylene oligomers are calculated using semi-empirical methods for up to 11 phenylene rings.
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Entanglement production by independent quantum channels
TL;DR: For the one-dimensional Hubbard model subject to periodic boundary conditions, the authors constructed a unitary transformation between basis states so that open boundary conditions apply for the transformed Hamiltonian, and provided a detailed analysis of these channels and showed that, apart from locality of the interactions, the performance of DMRG is effected significantly by the number and the strength of the quantum channels that entangle the density-matrix renormalization-group blocks.
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π‐Donation and Stabilizing Effects of Pnicogens in Carbenium and Silicenium Ions: A Theoretical Study of [C(XH2)3]+ and [Si(XH2)3]+ (X=N, P, As, Sb, Bi)
TL;DR: Of the ions investigated in this study, only the silicenium ions that are stabilized by pnicogens from the third to the sixth row of the periodic system yield increased stabilizing energies that follow the corresponding intrinsic p(pi)-donor abilities of the respective substituent.