Localization of polymers in a finite medium with fixed random obstacles

Details Localization of polymers in a finite medium with fixed random obstacles Localization of polymers in a finite medium with fixed random obstacles

2001-09-02

arxiv.org/abs/cond-mat/0109015v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

23 pages, 3 figures, revtex

Scientific paper

10.1140/epjb/e20020040

In this paper we investigate the conformation statistics of a Gaussian chain embedded in a medium of finite size, in the presence of quenched random obstacles. The similarities and differences between the case of random obstacles and the case of a Gaussian random potential are elucidated. The connection with the density of states of electrons in a metal with random repulsive impurities of finite range is discussed. We also interpret the results obtained in some previous numerical simulations.

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