2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR75 papers
- University of MünsterDE37 papers
- Los Alamos National LaboratoryUS33 papers
- Max Planck Institute for Dynamics and Self-OrganizationDE26 papers
- Observatoire de la Côte d’AzurFR26 papers
- University of StuttgartDE25 papers
- Friedrich-Alexander-Universität Erlangen-NürnbergDE23 papers
- Heinrich Heine University DüsseldorfDE23 papers
- Northwestern UniversityUS23 papers
- Deutsches Elektronen-Synchrotron DESYDE22 papers
- Bogolyubov Institute for Theoretical PhysicsUA21 papers
- ETH ZurichCH21 papers
40 papers · 1 filter
Thermal breakdown of coherent backscattering: a case study of quantum duality
Christian Wickles, Cord Mueller
We investigate coherent backscattering of light by two harmonically trapped atoms in the light of quantitative quantum duality. Including recoil and Doppler shift close to an optic…
Soliton ratchets in homogeneous nonlinear Klein-Gordon systems
Luis Morales-Molina, Niurka R. Quintero, Franz G. Mertens +1
We study in detail the ratchet-like dynamics of topological solitons in homogeneous nonlinear Klein-Gordon systems driven by a bi-harmonic force. By using a collective coordinate a…
On the dc Magnetization, Spontaneous Vortex State and Specific Heat in the superconducting state of the weakly ferromagnetic superconductor RuSrGdCuO
Thomas P. Papageorgiou, Ennio Casini, Hans F. Braun +3
Magnetic-field changes 0.2 Oe over the scan length in magnetometers that necessitate sample movement are enough to create artifacts in the dc magnetization measurements of the…
Strictly Nef Divisors
Frédéric Campana, Jungkai A. Chen, Thomas Peternell
Let be a projective manifold of dimension and a strictly nef line bundle on . Then is ample if in the following cases. 1.) unle…
Magnetic properties of carbon phases synthesized using high pressure-high temperature treatment
K. -H. Han, A. Talyzin, A. Dzwilewski +5
Two sets of samples were synthesized at 3.5 GPa near the point of C60 cage collapse at different annealing times. A clear structural transformation from mixture of C60 polymeric ph…
Even sets of nodes on sextic surfaces
Fabrizio Catanese, Fabio Tonoli
We determine the possible even sets of nodes on sextic surfaces in $\Pn 3$, showing in particular that their cardinalities are exactly the numbers in the set .…
Q.E.D. for algebraic varieties
Fabrizio Catanese
We introduce a new equivalence relation, denoted by (= Algebraic-Quasi-Étale- Deformation) for complete algebraic varieties with canonical singularities: it is generated…
Kinetic electrostatic structures in current-carrying pair plasmas
A. Luque, H. Schamel, B. Eliasson +1
The existence and properties of phase-space structures in current-carrying pair plasmas is studied by means of the finite amplitude expressions of the pseudo-potential method. Emph…
Application of large deviation theory to the mean-field phi^4-model
Ingo Hahn, Michael Kastner
A large deviation technique is used to calculate the microcanonical entropy function s(v,m) of the mean-field phi^4-model as a function of the potential energy v and the magnetizat…
When topology triggers a phase transition
Michael Kastner
Two mathematical mechanisms, responsible for the generation of a thermodynamic singularity, are individuated. For a class of short-range, confining potentials, a topology change in…
Inhomogeneous soliton ratchets under two ac forces
Luis Morales-Molina, Franz G. Mertens, Angel Sanchez
We extend our previous work on soliton ratchet devices [L. Morales-Molina et al., Eur. Phys. J. B 37, 79 (2004)] to consider the joint effect of two ac forces including non-harmoni…
Multipole radiation in a collisonless gas coupled to electromagnetism or scalar gravitation
Sebastian Bauer, Markus Kunze, Gerhard Rein +1
We consider the relativistic Vlasov-Maxwell and Vlasov-Nordström systems which describe large particle ensembles interacting by either electromagnetic fields or a relativistic scal…
Effective Interaction of Charged Platelets in Aqueous Solution: Investigations of Colloid Laponite Suspensions by Static Light Scattering and Small-Angle X-Ray Scattering
Li Li, L. Harnau, S. Rosenfeldt +1
We study dilute aqueous solutions of charged disk-like mineral particles (Laponite) by a combination of static light scattering (SLS) and small-angle x-ray scattering (SAXS). Lapon…
The Noether inequality for smooth minimal 3-folds
Fabrizio Catanese, Meng Chen, De-Qi Zhang
Let X be a smooth projective minimal 3-fold of general type. We prove the sharp inequality K^3_X >= (2 /3)(2p_g(X) - 5), an analogue of the classical Noether inequality for algebra…
Deformation in the large of some complex manifolds, II
Fabrizio Catanese, Paola Frediani
The compact complex manifolds considered in this article are principal torus bundles over a torus. We consider the Kodaira Spencer map of the complete Appell Humbert family (introd…
Entanglement measurement with discrete multiple coin quantum walks
Jochen Endrejat, Helmut Buettner
Within a special multi-coin quantum walk scheme we analyze the effect of the entanglement of the initial coin state. For states with a special entanglement structure it is shown th…
Degeneracy of Holomorphic Curves into Algebraic Varieties
Junjiro Noguchi, Jörg Winkelmann, Katsutoshi Yamanoi
Applying the Second Main Theorem we deal with the algebraic degeneracy of entire holomorphic curves from the complex plane into a complex algebraic normal variety of positive log K…
Evidence of secondary relaxations in the dielectric spectra of ionic liquids
Alberto Rivera, Ernst A. Roessler
We investigated the dynamics of a series of room temperature ionic liquids based on the same 1-butyl-3-methyl imidazolium cation and different anions by means of broadband dielectr…
The mean-field phi4-model: entropy, analyticity, and configuration space topology
Ingo Hahn, Michael Kastner
A large deviation technique is applied to the mean-field phi4-model, providing an exact expression for the configurational entropy s(v,m) as a function of the potential energy v an…
A bijection between the d-dimensional simplices with distances in {1,2} and the partitions of d+1
Christian Haase, Sascha Kurz
We give a construction for the d-dimensional simplices with all distances in {1,2} from the set of partitions of d+1.
Travelling kinks in discrete phi^4 models
O. F. Oxtoby, D. E. Pelinovsky, I. V. Barashenkov
In recent years, three exceptional discretizations of the phi^4 theory have been discovered [J.M. Speight and R.S. Ward, Nonlinearity 7, 475 (1994); C.M. Bender and A. Tovbis, J. M…
Counting polyominoes with minimum perimeter
Sascha Kurz
The number of essentially different square polyominoes of order n and minimum perimeter p(n) is enumerated.
Localization of Matter Waves in 2D-Disordered Optical Potentials
R. C. Kuhn, C. Miniatura, D. Delande +2
We consider ultracold atoms in 2D-disordered optical potentials and calculate microscopic quantities characterizing matter wave quantum transport in the non-interacting regime. We…
Accurate description of bulk and interfacial properties in colloid-polymer mixtures
R. L. C. Vink, A. Jusufi, J. Dzubiella +1
Large-scale Monte Carlo simulations of a phase-separating colloid-polymer mixture are performed and compared to recent experiments. The approach is based on effective interaction p…