Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR635 papers
- Max Planck Institute for the Science of LightDE555 papers
- Ruhr University BochumDE486 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR445 papers
- University of TübingenDE415 papers
- Humboldt-Universität zu BerlinDE395 papers
- The University of AdelaideAU373 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR360 papers
- Deutsches Elektronen-Synchrotron DESYDE350 papers
- University of Maryland, College ParkUS315 papers
- Max Planck Institute for Nuclear PhysicsDE314 papers
- Stockholm UniversitySE313 papers
42 papers · 1 filter
The stellar content of the Hamburg/ESO survey. I. Automated selection of DA white dwarfs
N. Christlieb, L. Wisotzki, D. Reimers +3
We describe automatic procedures for the selection of DA white dwarfs in the Hamburg/ESO objective-prism survey (HES). For this purpose, and the selection of other stellar objects…
Resonances in one and two rows of triangular Josephson junction cells
P. Caputo, M. V. Fistul, A. V. Ustinov
We present an experimental and analytical study of resonances in the current-voltage characteristics of single and double row triangular Josephson arrays. The magnetic field depend…
Upper bounds on the density of states of single Landau levels broadened by Gaussian random potentials
Thomas Hupfer, Hajo Leschke, Simone Warzel
We study a non-relativistic charged particle on the Euclidean plane R^2 subject to a perpendicular constant magnetic field and an R^2-homogeneous random potential in the approximat…
Comment on ``A Comparison Between Broad Histogram and Multicanonical Methods''
M. Kastner, M. Promberger
A recent paper by A. R. Lima, P. M. C. de Oliveira, and T. J. P. Penna [cond-mat/0002176; J. Stat. Phys. 99:691 (2000)], seems to contain at least two mistakes which deserve commen…
Crossing the coexistence line at constant magnetization
Michel Pleimling, Alfred Hueller
Using Monte Carlo histogram methods, the microcanonical caloric curve is computed for the Ising model in two and three dimensions with fixed magnetization. Whereas the signatures o…
Elastic p-3He and n-3H scattering with two- and three-body forces
B. Pfitzinger, H. M. Hofmann, G. M. Hale
We report on a microscopic calculation of n-3H and p-3He scattering employing the Argonne v_{18} and v_8' nucleon-nucleon potentials with and without additional three-nucleon force…
Compact Variables and Singular Fields in QCD
Frieder Lenz, Stefan Woerlen
Subject of our investigations is QCD formulated in terms of physical degrees of freedom. Starting from the Faddeev-Popov procedure, the canonical formulation of QCD is derived for…
Towards rule-based visual programming of generic visual systems
Berthold Hoffmann, Mark Minas
This paper illustrates how the diagram programming language DiaPlan can be used to program visual systems. DiaPlan is a visual rule-based language that is founded on the computatio…
Spatially modulated magnetic structures in thin films
W. Selke, D. Catrein, M. Pleimling
The axial next-nearest neighbour Ising (ANNNI) model is studied for thin films of up to layers, with a distinct phase diagram for each film thickness. The systematics of th…
Twist Mode in Spherical Alkali Metal Clusters
V. O. Nesterenko, J. R. Marinelli, F. F. de Souza Cruz +2
A remarkable orbital quadrupole magnetic resonance, so-called twist mode, is predicted in alkali metal clusters where it is represented by low-energy excitations of valen…
Existence and uniqueness of the integrated density of states for Schrödinger operators with magnetic fields and unbounded random potentials
Thomas Hupfer, Hajo Leschke, Peter Müller +1
The object of the present study is the integrated density of states of a quantum particle in multi-dimensional Euclidean space which is characterized by a Schrödinger operator with…
What the Infrared Behavior of QCD Green Functions can tell us about Confinement in the Covariant Gauge
Lorenz von Smekal, Reinhard Alkofer
We review aspects of confinement in the covariant and local description of QCD and discuss to what extend our present knowledge of the infrared behavior of QCD Green functions can…
Phonons in intrinsic Josephson systems with parallel magnetic field
C. Preis, C. Helm, K. Schmalzl +3
Subgap resonances in the I-V curves of layered superconductors are explained by the coupling between Josephson oscillations and phonons with dispersion in c-direction. In the prese…
Spectral analysis of multi mode pulsating sdB stars II. Feige 48, KPD 2109+4401 and PG 1219+534
U. Heber, I. N. Reid, K. Werner
Three members of the new class of pulsating sdB stars (sdBV or EC 14026 stars) are analysed from Keck HIRES spectra using line blanketed NLTE and LTE model atmospheres. Atmospheric…
Many-body diagrammatic expansion in a Kohn-Sham basis: implications for Time-Dependent Density Functional Theory of excited states
I. V. Tokatly, O. Pankratov
We formulate diagrammatic rules for many-body perturbation theory which uses Kohn-Sham (KS) Green's functions as basic propagators. The diagram technique allows to study the proper…
2d Model Field Theories at Finite Temperature and Density
Verena Schoen, Michael Thies
In certain 1+1 dimensional field theoretic toy models, one can go all the way from microscopic quarks via the hadron spectrum to the properties of hot and dense baryonic matter in…
The Q^2-dependence of the Generalised Gerasimov-Drell-Hearn Integral for the Proton
A. Airapetian
The dependence on Q^2 (the negative square of the 4-momentum of the exchanged virtual photon) of the generalised Gerasimov-Drell-Hearn integral for the proton has been measured in…
Blue horizontal branch stars in metal-rich globular clusters. II. 47 Tuc and NGC 362
S. Moehler, W. B. Landsman, B. Dorman
Atmospheric parameters (effective temperature, surface gravity) and radial velocities are derived for 12 candidate blue horizontal branch (HB) stars in the globular clusters 47 Tuc…
Consistency of Microcanonical and Canonical Finite-Size Scaling
M. Kastner, M. Promberger
Typically, in order to obtain finite-size scaling laws for quantities in the microcanonical ensemble, an assumption is taken as a starting point. In this paper, consistency of such…
First principles elastic constants and electronic structure of alpha-Pt_2Si and PtSi
O. Beckstein, J. E. Klepeis, G. L. W. Hart +1
We have carried out a first principles study of the elastic properties and electronic structure for two room-temperature stable Pt silicide phases, tetragonal alpha-Pt_2Si and orth…
Ising films with surface defects
M. -C. Chung, M. Kaulke, I. Peschel +2
The influence of surface defects on the critical properties of magnetic films is studied for Ising models with nearest-neighbour ferromagnetic couplings. The defects include one or…
Ionic and electronic structure of sodium clusters up to N=59
S. Kümmel, M. Brack, P. -G. Reinhard
We determined the ionic and electronic structure of sodium clusters with even electron numbers and 2 to 59 atoms in axially averaged and three-dimensional density functional calcul…
Chiral Condensates in the Light-Cone Vacuum
F. Lenz, M. Thies, K. Yazaki
In light-cone quantization, the standard procedure to characterize the phases of a system by appropriate ground state expectation values fails. The light-cone vacuum is determined…
Nucleon Properties in the Covariant Quark-Diquark Model
M. Oettel, R. Alkofer, L. von Smekal
In the covariant quark-diquark model the effective Bethe-Salpeter (BS) equations for the nucleon and the are solved including scalar {\em and axialvector} diquark correlations.…