5 papers
Entropically-Stabilized Self-Compactification in Model Colloidal Systems
Juyong Park, Alexei V. Tkachenko
We discuss the phenomenon of spontaneous self-compactification in a model colloidal system, proposed in a recent work on DNA-mediated self-assembly. We focus on the effect of therm…
Electrostatic effects in DNA stretching
Alexei V. Tkachenko
The response of a semiflexible polyelectrolyte chain to stretching in the regimes of moderate and weak screening is studied theoretically, with a special focus on DNA experiments.…
With a little help of DNA: Morphological diversity of colloidal self-assembly
Alexei V. Tkachenko
We study theoretically a binary system in which an attraction of unlike particles is combined with a type-independent soft core repulsion. The possible experimental implementation…
Generalized Entropy approach to far-from-equilibrium statistical mechanics
Alexei V. Tkachenko
We present a new approach to far-from-equilibrium statistical mechanics, based on the concept of generalized entropy, which is a microscopically-defined generalization of Onsager-M…
Mesoscopic Physics of Granular Flows
Alexei V. Tkachenko, Vachtang Putkaradze
We present a description of granular dynamics based on the idea of differentiation between fluid and solid components. First, we construct a model of completely fluidized phase. Th…