TY - JOUR
T1 - Dynamics of polymer decompression
T2 - Expansion, unfolding, and ejection
AU - Sakaue, Takahiro
AU - Yoshinaga, Natsuhiko
N1 - Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2009/4/6
Y1 - 2009/4/6
N2 - The dynamics of polymer decompression from a compact state to swollen conformation can be formally described as nonlinear diffusion. We discuss two basic examples: (i) the expansion, or unfolding from a compact state, and (ii) the ejection of a compressed polymer through a pore. The problem can be solved exactly for case (i), but not for case (ii). Even in such situations, a scheme called uniform approximation is shown to be useful to get a physical insight involved. Its application to case (ii) is able to account for conflicting numerical data in a consistent way.
AB - The dynamics of polymer decompression from a compact state to swollen conformation can be formally described as nonlinear diffusion. We discuss two basic examples: (i) the expansion, or unfolding from a compact state, and (ii) the ejection of a compressed polymer through a pore. The problem can be solved exactly for case (i), but not for case (ii). Even in such situations, a scheme called uniform approximation is shown to be useful to get a physical insight involved. Its application to case (ii) is able to account for conflicting numerical data in a consistent way.
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U2 - 10.1103/PhysRevLett.102.148302
DO - 10.1103/PhysRevLett.102.148302
M3 - Article
C2 - 19392490
AN - SCOPUS:64649085711
VL - 102
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 14
M1 - 148302
ER -