Dynamical Scaling Exponents for Polymer Translocation through a Nanopore
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Physical Review E, Volume 78, issue 5, pp. 1-4
Abstract
We determine the scaling exponents of polymer translocation (PT) through a nanopore by extensive computer simulations of various microscopic models for chain lengths extending up to N=800 in some cases. We focus on the scaling of the average PT time τ∼Nα and the mean-square change of the PT coordinate, ⟨s2(t)⟩∼tβ. We find α=1+2ν and β=2∕α for unbiased PT in two dimensions (2D) and three dimensions (3D). The relation αβ=2 holds for driven PT in 2D, with a crossover from α≈2ν for short chains to α≈1+ν for long chains. This crossover is, however, absent in 3D where α=1.42±0.01 and αβ≈2.2 for N≈40−800.Description
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Luo, K, Ollila, S T T, Huopaniemi, I, Ala-Nissila, T, Pomorski, P, Karttunen, M, Ying, S-C & Bhattacharya, A 2008, 'Dynamical Scaling Exponents for Polymer Translocation through a Nanopore', Physical Review E, vol. 78, no. 5, 050901, pp. 1-4. https://doi.org/10.1103/PhysRevE.78.050901