arXiv subjects

Marcel Hellmann

Publications and source records attributed to Marcel Hellmann.

2 recordsLinked to original sources

arXiv2008

A modified Potts model for the interaction of surface-attached polymer complexes

We present a simple yet generic model for the behavior of a system of many surface-attached flexible polymers with rigid side chains. Beyond its potential application in describing the dynamics of the extracellular matrix of mammalian cells, the model itself shows an interesting phase transition behavior since the underlying models (a two-dimensional Potts model and a XY-model) undergo different phase transitions.

cond-mat.stat-mech↗

arXiv2007

Monte Carlo simulations reveal the straightening up of an end-grafted flexible chain with a rigid side chain

We have studied the conformational properties of a flexible end-grafted chain (length $N$) with a rigid side chain (length $S$) by means of Monte Carlo simulations. Depending on the lengths $N$ and $S$ and the branching site, $b$, we observe a considerable straightening of the flexible backbone as quantified via the gyration tensor. For $b=N$, i.e. when attaching the side chain to the free end of the flexible backbone, the effect was strongest.

cond-mat.soft↗