First-order phase transition in unfolding a collapsed polymer: A histogram Monte Carlo simulation

NCU Institutional Repository > 理學院 > 物理研究所 > 期刊論文 > Item 987654321/39075

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/39075

题名:	First-order phase transition in unfolding a collapsed polymer: A histogram Monte Carlo simulation
作者:	Lai,PY
贡献者:	物理研究所
关键词:	POOR SOLVENT;DNA MOLECULE;BEHAVIOR;DYNAMICS;BRUSH
日期:	1998
上传时间:	2010-07-08 14:04:07 (UTC+8)
出版者:	中央大學
摘要:	The phase transition associated with stretching a collapsed polymer chain (consisting of N monomers) is investigated in detail using the histogram Monte Carlo simulation method and the bond-fluctuation model. The distribution functions for the number of contacts and end-to-end distances an obtained. The free energy profile associated with the transition is explicitly computed. Our results on the energy cumulants and free energy profiles provide direct evidence for the first-order nature of the phase transition. The phase transition occurs in the whole poor solvent regime below the Theta point, chi>chi(c) The free energy barrier at the transition is found to scale with N(chi-chi(c)) Phase diagram for the first-order transition phase boundary is also obtained. We find that the mean-field theory results give only a qualitatively correct picture for the phase transition. [S1063-651X(98)09011-4].
關聯:	PHYSICAL REVIEW E
显示于类别:	[物理研究所] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	451	检视/开启

在NCUIR中所有的数据项都受到原著作权保护.

社群 sharing