Collège Doctoral - Doktorandenkollegien

Statistical Physics of Complex Systems

Coventry - Leipzig - Lviv - Nancy

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Seminar

Shape anisotropy of polymers in disordered environment
Victoria Blavatska
ITP Leipzig
le Thursday 27 May 2010 à 17h00
We study the influence of structural obstacles in an environment on the size and shape characteristics of long flexible polymer macromolecules. We use the model of self-avoiding random walks on diluted regular lattices with two types of disorder: long-range-correlated defects and defects of critical concentration, when a fractal percolation cluster emerges in the system. Applying the Pruned-Enriched Rosenbluth algorithm (PERM), we estimate rotationally invariant universal quantities such as the averaged asphericity and prolateness of polymer chain configurations. Our results quantitatively reveal the extent of anisotropy of macromolecules due to the presence of structural defects.


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