期刊
PHYSICAL REVIEW LETTERS
卷 112, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.112.118302
关键词
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资金
- National Science Foundation [NSF PHY11-25915]
- Ministry of Education, Italy [PRIN 2010HXAW77]
- Cineca (Bologna, Italy)
- PSMN (ENS-Lyon)
- P2CHPD (UCB Lyon 1)
The conformational statistics of ring polymers in melts or dense solutions is strongly affected by their quenched microscopic topological state. The effect is particularly strong for nonconcatenated unknotted rings, which are known to crumple and segregate and which have been implicated as models for the generic behavior of interphase chromosomes. Here we use a computationally efficient multiscale approach to show that melts of rings of total contour length L-r can be quantitatively mapped onto melts of interacting lattice trees with gyration radii < R-g(2) (L-r)> proportional to L-r(2 nu) and nu = 0.32 +/- 0.01.
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