Dynamics of the constrained polymer collapse

被引：6
作者：
Aranson, IS
Tsimring, LS
机构：
[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA
[2] Univ Calif San Diego, Inst Nonlinear Sci, La Jolla, CA 92093 USA
来源：
EUROPHYSICS LETTERS | 2003年 / 62卷 / 06期
关键词：
D O I：
10.1209/epl/i2003-00450-8
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The dynamics of polymer collapse with a fixed distance between endpoints is studied analytically and numerically by the Nose-Hoover algorithm. We find that at the pearling stage of the collapse the number of pearls decays as t(-1/2) leading to anomalously long collapse time. To understand the effect of Stokes drag we reduced the problem of long-polymer-chain collapse to the one-dimensional diffusion-limited coalescence of particles with the mass-dependent mobility. In this case the number of pearls decays slower, as t(-3/7).
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页码：848 / 854
页数：7
相关论文
共 26 条
  • [1] Collapse dynamics of a polymer chain: Theory and simulation
    Abrams, CF
    Lee, NK
    Obukhov, SP
    [J]. EUROPHYSICS LETTERS, 2002, 59 (03): : 391 - 397
  • [2] ALLEN MP, 2001, COMPUTER SIMULATIONS
  • [3] Complete exact solution of diffusion-limited coalescence, A+A→A
    ben-Avraham, D
    [J]. PHYSICAL REVIEW LETTERS, 1998, 81 (21) : 4756 - 4759
  • [4] KINETICS OF HOMOPOLYMER COLLAPSE
    BYRNE, A
    KIERNAN, P
    GREEN, D
    DAWSON, KA
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1995, 102 (01) : 573 - 577
  • [5] Solvent effects on the collapse dynamics of polymers
    Chang, RW
    Yethiraj, A
    [J]. JOURNAL OF CHEMICAL PHYSICS, 2001, 114 (17) : 7688 - 7699
  • [6] de Gennes P.G., 1988, SCALING CONCEPTS POL
  • [7] APPLICABILITY OF NOSE ISOTHERMAL REVERSIBLE DYNAMICS
    DITOLLA, FD
    RONCHETTI, M
    [J]. PHYSICAL REVIEW E, 1993, 48 (03) : 1726 - 1737
  • [8] MICROSCOPIC SPATIAL CORRELATIONS INDUCED BY EXTERNAL NOISE IN A REACTION DIFFUSION SYSTEM
    DOERING, CR
    [J]. PHYSICA A, 1992, 188 (1-3): : 386 - 403
  • [9] Pulling knotted polymers
    Farago, O
    Kantor, Y
    Kardar, M
    [J]. EUROPHYSICS LETTERS, 2002, 60 (01): : 53 - 59
  • [10] Slow relaxation and solvent effects in the collapse of a polymer
    Frisch, T
    Verga, A
    [J]. PHYSICAL REVIEW E, 2002, 66 (04): : 11
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