4.3k citations
- Centre National de la Recherche ScientifiqueFR434 papers
- Max Planck Institute for Radio AstronomyDE326 papers
- Leiden UniversityNL200 papers
- Max Planck Institute for AstronomyDE199 papers
- Sorbonne UniversitéFR180 papers
- Université Paris CitéFR162 papers
- Max Planck Institute for Extraterrestrial PhysicsDE150 papers
- European Southern ObservatoryCL136 papers
- Forschungszentrum JülichDE135 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR129 papers
- Institut de Planétologie et d'Astrophysique de GrenobleFR118 papers
- Center for Astrophysics Harvard & SmithsonianUS116 papers
7 papers · 2 filters
Spectral Densities from Dynamic Density-Matrix Renormalization
Carsten Raas, Götz S. Uhrig
Dynamic density-matrix renormalization provides valuable numerical information on dynamic correlations by computing convolutions of the corresponding spectral densities. Here we di…
Thermodynamics of a Spin-1/2 Chain Coupled to Einstein Phonons
Alexander Bühler, Götz S. Uhrig, Jaan Oitmaa
A high order series expansion is employed to study the thermodynamical properties of a S=1/2 chain coupled to dispersionless phonons. The results are obtained without truncating th…
Determination of the orbital moment and crystal field splitting in LaTiO
M. W. Haverkort, Z. Hu, A. Tanaka +18
Utilizing a sum-rule in a spin-resolved photoelectron spectroscopic experiment with circularly polarized light, we show that the orbital moment in LaTiO is strongly reduced bot…
Quantum Tunneling of the Magnetization in the Ising Chain Compound Ca3Co2O6
A. Maignan, V. Hardy, S. Hebert +5
The magnetic behavior of the Ca3Co2O6 spin chain compound is characterized by a large Ising-like character of its ferromagnetic chains, set on triangular lattice, that are antiferr…
Effects of non-magnetic impurities on spin-fluctuations induced superconductivity
S. Dusuel, D. Zanchi
We study the effects of non-magnetic impurities on the phase diagram of a system of interacting electrons with a flat Fermi surface. The one-loop Wilsonian renormalization group fl…
Nonequilibrium Transport through a Kondo Dot: Decoherence Effects
J. Paaske, A. Rosch, J. Kroha +1
We investigate the effects of voltage induced spin-relaxation in a quantum dot in the Kondo regime. Using nonequilibrium perturbation theory, we determine the joint effect of self-…