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
52 papers · 1 filter
Recent developments in classical density functional theory: Internal energy functional and diagrammatic structure of fundamental measure theory
M. Schmidt, M. Burgis, W. S. B. Dwandaru +2
An overview of several recent developments in density functional theory for classical inhomogeneous liquids is given. We show how Levy's constrained search method can be used to de…
Rotating, stationary, axially symmetric spacetimes with collisionless matter
Håkan Andréasson, Markus Kunze, Gerhard Rein
The existence of stationary solutions to the Einstein-Vlasov system which are axially symmetric and have non-zero total angular momentum is shown. This provides mathematical models…
Mechanism of Fast Axially--Symmetric Reversal of Magnetic Vortex Core
Oleksandr V. Pylypovskyi, Denis D. Sheka, Volodymyr P. Kravchuk +2
The magnetic vortex core in a nanodot can be switched by an alternating transversal magnetic field. We propose a simple collective coordinate model which describes comprehensive vo…
Microscopic approach to entropy production
Raphael Wittkowski, Hartmut Löwen, Helmut R. Brand
It is a great challenge of nonequilibrium statistical mechanics to calculate entropy production within a microscopic theory. In the framework of linear irreversible thermodynamics,…
Polarization dependence of phonon influences in exciton-biexciton quantum dot systems
M. Glässl, V. M. Axt
We report on a strong dependence of the phonon-induced damping of Rabi dynamics in an optically driven exciton-biexciton quantum dot system on the polarization of the exciting puls…
Measuring excitation-energy transfer with a real-time time-dependent density functional theory approach
Dirk Hofmann, Heiko Appel, Massimiliano Di Ventra +1
We investigate the time an electronic excitation travels in a supermolecular setup using a measurement process in an open quantum-system framework. The approach is based on the sto…
Directed Subdifferentiable Functions and the Directed Subdifferential without Delta-Convex Structure
Robert Baier, Elza Farkhi, Vera Roshchina
We show that the directed subdifferential introduced for differences of convex (delta-convex, DC) functions by Baier and Farkhi can be constructed from the directional derivative w…
On the inverse power index problem
Sascha Kurz
Weighted voting games are frequently used in decision making. Each voter has a weight and a proposal is accepted if the weight sum of the supporting voters exceeds a quota. One lin…
Floating nematic phase in colloidal platelet-sphere mixtures
Daniel de las Heras, Nisha Doshi, Terence Cosgrove +4
The phase behaviour of colloidal dispersions is interesting for fundamental reasons and for technological applications such as photonic crystals and electronic paper. Sedimentation…
Ion temperature gradient instability at sub-Larmor radius scales with non-zero ballooning angle
Pierluigi Migliano, Yann Camenen, Francis Casson +2
Linear gyro-kinetic stability calculations predict unstable toroidal Ion Temperature Gradient modes with normalised poloidal wave vectors well above one () for standard…
The Index Theorem for Quasi-Tori
Tsz On Mario Chan
The Index theorem for holomorphic line bundles on complex tori asserts that some cohomology groups of a line bundle vanish according to the signature of the associated hermitian fo…
Around and beyond the canonical class
Vladimir Lazić
This survey is an invitation to recent developments in higher dimensional birational geometry.
Irreducible symplectic complex spaces
Tim Kirschner
In chapter 1 we define period mappings of Hodge-de Rahm type for certain submersive, yet not necessarily locally topologically trivial, morphisms of complex manifolds. Generalizing…
Frustrated pentagonal Cairo lattice in the non-collinear antiferromagnet Bi4Fe5O13F
Artem M. Abakumov, Dmitry Batuk, Alexander A. Tsirlin +6
The crystal and magnetic structures and underlying magnetic interactions of Bi4Fe5O13F, a model system for studying the physics of the Cairo pentagonal spin lattice, are investigat…
Bulk fluid phase behaviour of colloidal platelet-sphere and platelet-polymer mixtures
Daniel de las Heras, Matthias Schmidt
Using a geometry-based fundamental measure density functional theory, we calculate bulk fluid phase diagrams of colloidal mixtures of vanishingly thin hard circular platelets and h…
Biexciton state preparation in a quantum dot via adiabatic rapid passage: comparison between two control protocols and impact of phonon-induced dephasing
M. Glässl, A. Barth, K. Gawarecki +6
We investigate theoretically under which conditions a stable and high-fidelity preparation of the biexciton state in a quantum dot can be realized by means of adiabatic rapid passa…
The axisymmetric antidynamo theorem revisited
Ralf Kaiser, Andreas Tilgner
The axisymmetric kinematic dynamo problem is reconsidered and a number of open questions are answered. Apart from axisymmetry and smoothness of data and solution we deal with this…
Adiabatic rapid passage in quantum dots: phonon-assisted decoherence and biexciton generation
K. Gawarecki, S. Lüker, D. E. Reiter +5
We study the evolution of a quantum dot controlled by a frequency-swept (chirped), linearly polarized laser pulse in the presence of carrier-phonon coupling. The final occupation o…
Extended dynamical density functional theory for colloidal mixtures with temperature gradients
Raphael Wittkowski, Hartmut Löwen, Helmut R. Brand
In the past decade, classical dynamical density functional theory (DDFT) has been developed and widely applied to the Brownian dynamics of interacting colloidal particles. One of t…
Patchy worm-like micelles: solution structure studied by small-angle neutron scattering
S. Rosenfeldt, F. Luedel, C. Schulreich +5
Triblock terpolymers exhibit a rich self-organization behavior including the formation of fascinating cylindrical core-shell structures with a phase separated corona. After crystal…
Properties of patchy colloidal particles close to a surface: a Monte Carlo and density functional study
Nicoletta Gnan, Daniel de las Heras, José Maria Tavares +2
We investigate the behavior of a patchy particle model close to a hard-wall via Monte Carlo simulation and density functional theory (DFT). Two DFT approaches, based on the homogen…
Burniat-type surfaces and a new family of surfaces with p_g = 0, K^2 = 3
Ingrid Bauer, Fabrizio Catanese
In this paper, one of a series devoted to the classification, the moduli spaces and the discovery of new surfaces of general type with geometric genus p_g= 0, we generalize a class…
Hodge theory of the middle convolution
Michael Dettweiler, Claude Sabbah
We compute the behaviour of Hodge data by tensor product with a unitary rank-one local system and middle convolution by a Kummer unitary rank-one local system for an irreducible va…
The moduli space of even surfaces of general type with K^2 = 8, p_g = 4 and q = 0
Fabrizio Catanese, Wenfei Liu, Roberto Pignatelli
We settle the first step for the classification of surfaces of general type with K^2 = 8, p_g = 4 and q = 0, classifying the even surfaces (K is 2-divisible). The first even surfac…