1.6k citations
- German Research Centre for Artificial IntelligenceDE125 papers
- Rheinland-Pfälzische Technische Universität Kaiserslautern-LandauDE110 papers
- Fraunhofer Institute for Industrial MathematicsDE89 papers
- Centre National de la Recherche ScientifiqueFR82 papers
- University of Koblenz and LandauDE66 papers
- Johannes Gutenberg University MainzDE58 papers
- University of Applied Sciences KaiserslauternDE54 papers
- Technical University of MunichDE37 papers
- Saarland UniversityDE32 papers
- University of ViennaAT29 papers
- A. Alikhanyan National LaboratoryAM26 papers
- Daimler (Germany)DE26 papers
7 papers · 2 filters
Thermodynamics of multiferroic spin chains
J. Sirker
The minimal model to describe many spin chain materials with ferroelectric properties is the Heisenberg model with ferromagnetic nearest neighbor coupling J1 and antiferromagnetic…
Recursive Method for the Density of States in One Dimension
Imke Schneider, Sebastian Eggert
We derive a powerful yet simple method for analyzing the local density of states in gapless one dimensional fermionic systems, including extensions such as momentum dependent inter…
Spin-wave theory for dimerized ferromagnetic chains
Alexander Herzog, Peter Horsch, Andrzej M. Oles +1
We describe a Peierls dimerization which occurs in ferromagnetic spin chains at finite temperature, within the modified spin-wave theory. Usual spin-wave theory is modified by intr…
Diffusion and ballistic transport in one-dimensional quantum systems
J. Sirker, R. G. Pereira, I. Affleck
It has been conjectured that transport in integrable one-dimensional (1D) systems is necessarily ballistic. The large diffusive response seen experimentally in nearly ideal realiza…
Lattice vs. continuum theory of the periodic Heisenberg chain
Michael Bortz, Michael Karbach, Imke Schneider +1
We consider the detailed structure of low energy excitations in the periodic spin-1/2 XXZ Heisenberg chain. By performing a perturbative calculation of the non-linear corrections t…
Conserving quasiparticle calculations for small metal clusters
George Pal, Yaroslav Pavlyukh, Hans Christian Schneider +1
A novel approach for GW-based calculations of quasiparticle properties for finite systems is presented, in which the screened interaction is obtained directly from a linear respons…