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Condensed Matter > Soft Condensed Matter

arXiv:cond-mat/9907299 (cond-mat)
[Submitted on 20 Jul 1999]

Title:Drift of a polymer chain in disordered media

Authors:Semjon Stepanow, Michael Schulz
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Abstract: We consider the drift of a polymer chain in a disordered medium, which is caused by a constant force applied to the one end of the polymer, under neglecting the thermal fluctuations. In the lowest order of the perturbation theory we have computed the transversal fluctuations of the centre of mass of the polymer, the transversal and the longitudinal size of the polymer, and the average velocity of the polymer. The corrections to the quantities under consideration, which are due to the interplay between the motion and the quenched forces, are controlled by the driving force and the degree of polymerization. The transversal fluctuations of the Brownian particle and of the centre of mass of the polymer are obtained to be diffusive. The transversal fluctuations studied in the present Letter may also be of relevance for the related problem of the drift of a directed polymer in disordered media and its applications.
Comments: 11 pages, RevTex, Accepted for publication in Europhysics Letters
Subjects: Soft Condensed Matter (cond-mat.soft); Statistical Mechanics (cond-mat.stat-mech)
Cite as: arXiv:cond-mat/9907299 [cond-mat.soft]
  (or arXiv:cond-mat/9907299v1 [cond-mat.soft] for this version)
  https://doi.org/10.48550/arXiv.cond-mat/9907299
Journal reference: Europhys.Lett. 47, 643 (1999)
Related DOI: https://doi.org/10.1209/epl/i1999-00437-y

Submission history

From: Semjon Stepanow [view email]
[v1] Tue, 20 Jul 1999 14:41:23 UTC (7 KB)
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