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- Ch von Ferber, Hartmut Löwen
- Faraday discussions
- 2005

We study the structure of complexes formed between ionic surfactants (SF) and a single oppositely charged polyelectrolyte (PE) chain. For our computer simulation we use the "primitive" electrolyte model: while the polyelectrolyte is modeled by a tethered chain of charged hard sphere beads, the surfactant molecules consist of a single charged head bead… (More)

- Florian Jasch, Ch von Ferber, Alexander Blumen
- Physical review. E, Statistical, nonlinear, and…
- 2003

Treating the relaxation dynamics of an ensemble of random hyperbranched macromolecules in dilute solution represents a challenge even in the framework of Rouse-type approaches, which focus on generalized Gaussian structures (GGSs). The problem is that one has to average over a large class of realizations of molecular structures, and that each molecule… (More)

- Alexander Blumen, Aurel Jurjiu, Th Koslowski, Ch von Ferber
- Physical review. E, Statistical, nonlinear, and…
- 2003

We consider the dynamics of Vicsek fractals of arbitrary connectivity, models for hyperbranched polymers. Their basic dynamical properties depend on their eigenvalue spectra, which can be determined iteratively. This paves the way for theoretical studies to very high precision for regular, finite, arbitrarily large hyperbranched structures.

- Joachim Dzubiella, Arben Jusufi, +9 authors Peter N Pusey
- Physical review. E, Statistical, nonlinear, and…
- 2001

We examine the demixing transition in star-polymer-colloid mixtures for star arm numbers f=2,6,16,32 and different star-polymer-colloid size ratios 0.18< or =q< or =0.50. Theoretically, we solve the thermodynamically self-consistent Rogers-Young integral equations for binary mixtures using three effective pair potentials obtained from direct molecular… (More)

- Florian Jasch, Ch von Ferber, Alexander Blumen
- Physical review. E, Statistical, nonlinear, and…
- 2004

In this work we investigate the spectra of Laplacian matrices that determine many dynamic properties of scale-free networks below and at the percolation threshold. We use a replica formalism to develop analytically, based on an integral equation, a systematic way to determine the ensemble averaged eigenvalue spectrum for a general type of treelike networks.… (More)

- Yu . Holovatch, V Blavats 'ka, Maxym Dudka, Ch von Ferber, Reinhard Folk, T Yavors 'kii
- 2008

In this review paper, we discuss the influence of weak quenched disorder on the critical behavior in condensed matter and give a brief review of available experimental and theoretical results as well as results of MC simulations of these phenomena. We concentrate on three cases: (i) uncorrelated random-site disorder, (ii) long-range-correlated random-site… (More)

- Viktoria Blavatska, Ch von Ferber, Yu . Holovatch
- Physical review. E, Statistical, nonlinear, and…
- 2011

We consider star polymers, consisting of two different polymer species, in a solvent subject to quenched correlated structural obstacles. We assume that the disorder is correlated with a power-law decay of the pair-correlation function g(x)~x(-a). Applying the field-theoretical renormalization group approach in d dimensions, we analyze different scenarios… (More)

- Matthias Schmidt, Ch von Ferber
- Physical review. E, Statistical, nonlinear, and…
- 2001

In order to study ternary amphiphilic mixtures, we introduce a simplistic model of hard spheres corresponding to water and hard needles corresponding to oil and amphiphilic particles, where the hydrophilic head is modeled as a hard sphere and the hydrophobic tail as an infinitely thin needle attached radially to the sphere. For this system, we construct a… (More)

- V . Palchykov, Ch von Ferber, Reinhard Folk, Yu . Holovatch
- Physical review. E, Statistical, nonlinear, and…
- 2009

The system of two scalar order parameters on a complex scale-free network is analyzed in the spirit of Landau theory. To add a microscopic background to the phenomenological approach, we also study a particular spin Hamiltonian that leads to coupled scalar order behavior using the mean-field approximation. Our results show that the system is characterized… (More)

- Ch von Ferber
- Gesundheitswesen (Bundesverband der Ärzte des O…
- 2001