Stretching of a polymer below the θ point -: art. no. 088301

被引：70
作者：
Marenduzzo, D
Maritan, A
Rosa, A
Seno, F
机构：
[1] SISSA, I-34014 Trieste, Italy
[2] INFM, I-34014 Trieste, Italy
[3] Abdus Salam Int Ctr Theoret Phys, I-34100 Trieste, Italy
[4] Univ Padua, Dipartimento Fis, I-35131 Padua, Italy
[5] INFM, I-35131 Padua, Italy
来源：
PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 08期
关键词：
D O I：
10.1103/PhysRevLett.90.088301
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The unfolding of a polymer below the theta point when pulled by an external force is studied both in d=2 on the lattice and in d=3 off the lattice. At T=0 and for finite length chains, it is found that the globule unfolds via multiple steps, corresponding to transitions between different minima, in both cases. In d=3 one of these intermediates is a regular helix. In the infinite length limit, these steps have a qualitative effect only in d=2. The phase diagram in d=2 is determined via the transfer matrix. To rationalize these results, energy-entropy and renormalization group arguments are given.
引用
收藏
页码：1 / 088301
页数：4
相关论文
共 50 条
[31]   Heat transport through Josephson point contacts -: art. no. 134503 [J].
Zhao, E ;
Löfwander, T ;
Sauls, JA .
PHYSICAL REVIEW B, 2004, 69 (13) :134503-1
[32]   Multiscaling at point J:: Jamming is a critical phenomenon -: art. no. 088001 [J].
Drocco, JA ;
Hastings, MB ;
Reichhardt, CJO ;
Reichhardt, C .
PHYSICAL REVIEW LETTERS, 2005, 95 (08)
[33]   Triple-point wetting on rough substrates -: art. no. 055702 [J].
Esztermann, A ;
Heni, M ;
Löwen, H ;
Klier, J ;
Sohaili, M ;
Leiderer, P .
PHYSICAL REVIEW LETTERS, 2002, 88 (05) :557021-557024
[34]   Antiflow of nucleons at the softest point of the equation of state -: art. no. 024909 [J].
Brachmann, J ;
Soff, S ;
Dumitru, A ;
Stöcker, A ;
Maruhn, JA ;
Greiner, W ;
Bravina, LV ;
Rischke, DH .
PHYSICAL REVIEW C, 2000, 61 (02) :8
[35]   Realistic fission saddle-point shapes -: art. no. 047602 [J].
Möller, P ;
Iwamoto, A .
PHYSICAL REVIEW C, 2000, 61 (04) :4
[36]   Nonperturbative fixed point in a nonequilibrium phase transition -: art. no. 100601 [J].
Canet, L ;
Chaté, H ;
Delamotte, B ;
Dornic, I ;
Muñoz, MA .
PHYSICAL REVIEW LETTERS, 2005, 95 (10)
[37]   Pattern formation at the bicritical point of the Faraday instability -: art. no. 066204 [J].
Wagner, C ;
Müller, HW ;
Knorr, K .
PHYSICAL REVIEW E, 2003, 68 (06)
[38]   Scaling near the θ point for isolated polymers in solution -: art. no. 032801 [J].
Owczarek, AL ;
Prellberg, T .
PHYSICAL REVIEW E, 2003, 67 (03) :3-032801
[39]   Restricted dynamics of a supercooled liquid in a polymer matrix -: art. no. 054304 [J].
Svanberg, C ;
Bergman, R ;
Jacobsson, P ;
Börjesson, L .
PHYSICAL REVIEW B, 2002, 66 (05)
[40]   Legendre transform in the thermodynamics of flowing polymer solutions -: art. no. 057101 [J].
Casas-Vázquez, J ;
del Castillo, LF ;
Jou, D ;
Criado-Sancho, M .
PHYSICAL REVIEW E, 2001, 63 (05) :571011-571013
12345