TY - JOUR

T1 - Loops in one-dimensional random walks

AU - Wolfling, S.

AU - Kantor, Y.

PY - 1999/12/2

Y1 - 1999/12/2

N2 - Distribution of loops in a one-dimensional random walk (RW), or, equivalently, neutral segments in a sequence of positive and negative charges is important for understanding the low energy states of randomly charged polymers. We investigate numerically and analytically loops in several types of RWs, including RWs with continuous step-length distribution. We show that for long walks the probability density of the longest loop becomes independent of the details of the walks and definition of the loops. We investigate crossovers and convergence of probability densities to the limiting behavior, and obtain some of the analytical properties of the universal probability density.

AB - Distribution of loops in a one-dimensional random walk (RW), or, equivalently, neutral segments in a sequence of positive and negative charges is important for understanding the low energy states of randomly charged polymers. We investigate numerically and analytically loops in several types of RWs, including RWs with continuous step-length distribution. We show that for long walks the probability density of the longest loop becomes independent of the details of the walks and definition of the loops. We investigate crossovers and convergence of probability densities to the limiting behavior, and obtain some of the analytical properties of the universal probability density.

UR - http://www.scopus.com/inward/record.url?scp=0039602838&partnerID=8YFLogxK

U2 - 10.1007/s100510051039

DO - 10.1007/s100510051039

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AN - SCOPUS:0039602838

VL - 12

SP - 569

EP - 577

JO - European Physical Journal B

JF - European Physical Journal B

SN - 1434-6028

IS - 4

ER -