508 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Sapienza University of RomeIT203 papers
- Centre National de la Recherche ScientifiqueFR156 papers
- Deutsches Elektronen-Synchrotron DESYDE152 papers
- European Organization for Nuclear ResearchCH147 papers
- Universität HamburgDE147 papers
- Princeton UniversityUS145 papers
- RWTH Aachen UniversityDE144 papers
- Eötvös Loránd UniversityHU143 papers
- Rutgers, The State University of New JerseyUS143 papers
- Tata Institute of Fundamental ResearchIN143 papers
- University of California San DiegoUS143 papers
- University of Wisconsin–MadisonUS143 papers
18 papers · 1 filter
Non-interacting two-impurity Anderson model on a lattice at particle-hole symmetry
Zakaria M. M. Mahmoud, Jörg Bünemann, Florian Gebhard
We study the non-interacting two-impurity Anderson model on a lattice using the Green function equation-of-motion method. A case of particular interest is the RKKY limit that is ch…
Fast and Accurate Surface Normal Integration on Non-Rectangular Domains
Martin Bähr, Michael Breuß, Yvain Quéau +2
The integration of surface normals for the purpose of computing the shape of a surface in 3D space is a classic problem in computer vision. However, even nowadays it is still a cha…
Pseudogap and (an)isotropic scattering in the fluctuating charge-density wave phase of cuprates
S. Caprara, C. Di Castro, M. Grilli +1
We present a general scenario for high-temperature superconducting cuprates, based on the presence of dynamical charge density waves (CDWs) and to the occurrence of a CDW quantum c…
Coulomb matrix elements in multi-orbital Hubbard models
Jörg Bünemann, Florian Gebhard
Coulomb matrix elements are needed in all studies in solid-state theory that are based on Hubbard-type multi-orbital models. Due to symmetries, the matrix elements are not independ…
The stratorotational instability of Taylor-Couette flows of moderate Reynolds numbers
G. Rüdiger, T. Seelig, M. Schultz +3
In view of new experimental data the instability against adiabatic nonaxisymmetric perturbations of a Taylor-Couette flow with an axial density stratification is considered in depe…
Observation of field emission from GeSn nanoparticles epitaxially grown on silicon nanopillar arrays
Antonio Di Bartolomeo, Maurizio Passacantando, Gang Niu +4
We apply molecular beam epitaxy to grow GeSn-nanoparticles on top of Si-nanopillars patterned onto p-type Si wafers. We use X-ray photoelectron spectroscopy to confirm a metallic b…
Kinetic analysis of negative power deposition in low pressure plasmas
Jan Trieschmann, Thomas Mussenbrock
The negative power absorption in low pressure plasmas is investigated by means of an analyical model which couples Boltzmann's equation and the quasi-stationary Maxwell's equation.…
Balancing selfishness and norm conformity can explain human behavior in large-scale Prisoner's Dilemma games and can poise human groups near criticality
John Realpe-Gómez, Giulia Andrighetto, Gustavo Nardin +1
Cooperation is central to the success of human societies as it is crucial for overcoming some of the most pressing social challenges of our time. Yet how human cooperation is achie…
Tunable Schottky barrier and high responsivity in graphene/Si-nanotip optoelectronic device
Antonio Di Bartolomeo, Filippo Giubileo, Giuseppe Luongo +7
We demonstrate tunable Schottky barrier height and record photo-responsivity in a new-concept device made of a single-layer CVD graphene transferred onto a matrix of nanotips patte…
Exchange couplings for Mn ions in CdTe: validity of spin models for dilute magnetic II-VI semiconductors
Thorben Linneweber, Jörg Bünemann, Ute Löw +2
We employ density-functional theory (DFT) in the generalized gradient approximation (GGA) and its extensions GGA+ and GGA+Gutzwiller to calculate the magnetic exchange couplings…
Double-diffusive convection and baroclinic instability in a differentially heated and initially stratified rotating system: the barostrat instability
Miklos Vincze, Ion Borcia, Uwe Harlander +1
A water-filled differentially heated rotating annulus with initially prepared stable vertical salinity profiles is studied in the laboratory. Based on two-dimensional horizontal pa…
Direct growth of low-doped graphene on Ge/Si(001) surfaces
J. Dabrowski, G. Lippert, J. Avila +12
The practical difficulties to use graphene in microelectronics and optoelectronics is that the available methods to grow graphene are not easily integrated in the mainstream techno…
Dynamical charge density waves rule the phase diagram of cuprates
S. Caprara, C. Di Castro, G. Seibold +1
In the last few years charge density waves (CDWs) have been ubiquitously observed in high-temperature superconducting cuprates and are now the most investigated among the competing…
Interplay of Coulomb interaction and spin-orbit coupling
Jörg Bünemann, Thorben Linneweber, Ute Löw +2
We employ the Gutzwiller variational approach to investigate the interplay of Coulomb interaction and spin-orbit coupling in a three-orbital Hubbard model. Already in the paramagne…
A Characteristic Dynamic Mode Decomposition
Jörn Sesterhenn, Amir Shahirpour
Temporal or spatial structures are readily extracted from complex data by modal decompositions like Proper Orthogonal Decomposition (POD) or Dynamic Mode Decomposition (DMD). Subsp…
Morphology and chemical composition of cobalt germanide islands on Ge(001): in-situ nanoscale insights into contact formation for Ge-based device technology
M. Ewert, Th. Schmidt, J. I. Flege +7
The reactive growth of cobalt germanide on Ge(001) was investigated by means of in-situ x-ray absorption spectroscopy photoemission electron microscopy (XAS-PEEM), micro-illuminati…
Optimal Control of an Energy Storage Facility Under a Changing Economic Environment and Partial Information
Anton A. Shardin, Michaela Szölgyenyi
In this paper we consider an energy storage optimization problem in finite time in a model with partial information that allows for a changing economic environment. The state proce…
Expert Opinions and Logarithmic Utility Maximization for Multivariate Stock Returns with Gaussian Drift
Jörn Sass, Dorothee Westphal, Ralf Wunderlich
This paper investigates optimal trading strategies in a financial market with multidimensional stock returns where the drift is an unobservable multivariate Ornstein-Uhlenbeck proc…