Difference between revisions of "Christian Holm"
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Revision as of 15:35, 24 June 2008
<setdata> title=PD Dr. status=Group leader phone=47505 room=2.301 email=holm _at_ fias.uni-frankfurt.de image=Christian_Holm.jpg </setdata>
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Research
My scientific interests are especially the study of complex charged soft matter by means of computer simulations, and the development of simple theoretical models to describe them. More precisely I am currently working on the solution properties and association behavior of flexible and semi-flexible polyelectrolytes in various solvents and under various salt concentrations and salt types. In addition I am interested in the effective pair interactions of charged colloidal particles and their phase behavior. This includes simple DNA models, and DNA protein interactions, as well as developing coarse grained models for DNA-Histone complexes. I also began investigations of ferrofluids, where special attention is given to the structure of the solution and the magnetic response functions. Another interest is the applicability of mean-field models for the description of models with long range interactions, and possible improvements beyond the mean-field approach. This include local density functional methods based on the Poisson-Boltzmann functional, as well as strong coupling theories such as Wigner-crystal methods. In addition I am interested in the development of fast methods for the computation of long range interactions. These include pure Coulomb as well as dipolar interactions in various geometries (3D-1D), and under various boundary conditions.
Publications
2008
-
Kai Grass, Ute Böhme, Ulrich Scheler, Hervé Cottet, Christian Holm.
Importance of Hydrodynamic Shielding for the Dynamic Behavior of Short Polyelectrolyte Chains.
Physical Review Letters 100(9):096104, 2008.
[PDF] (115 KB) [DOI] -
Baofu Qiao, Christian Krekeler, Robert Berger, Luigi Delle Site, Christian Holm.
Effect of Anions on Static Orientational Correlations, Hydrogen Bonds, and Dynamics in Ionic Liquids: A Simulational Study.
The Journal of Physical Chemistry B 112(6):1743–1751, 2008.
[PDF] (361 KB) [DOI] -
Sofia Kantorovich, Juan J. Cerdà, Christian Holm.
Microstructure analyisis of monodisperse ferrofluid monolayers: theory and simulation.
Physical Chemistry Chemical Physics 10(14):1883–1895, 2008.
[PDF] (1.3 MB) [DOI] -
Olaf Lenz, Christian Holm.
Simulation of charge reversal in salty environments: Giant overcharging?
European Physical Journal E 26:191–195, 2008.
[PDF] (309 KB) [Preprint] [DOI] -
Vincent Ballenegger, Joan J. Cerdà, Olaf Lenz, Christian Holm.
The optimal P3M algorithm for computing electrostatic energies in periodic systems.
The Journal of Chemical Physics 128(3):034109, 2008.
[PDF] (426 KB) [Preprint] [DOI]