标题： 具有平行对齐单链和周期性碱基序列的伪RNA作为新的普适性类 显示英文标题

标题： Pseudo-RNA with parallel aligned single-strands and periodic base sequence as a new universality class

摘要： 我们研究了一种针对具有周期性碱基序列 GCGCG... 的 RNA 类聚合物的场论，其中只有方向一致的单链才能形成双链。 该场论来源于一个包含排斥体积效应、碱基序列和温度依赖的复性/变性过程的格点模型。 人工的方向性导致了一个新的普适类，与传统的分支聚合物和 Lee-Yang 场论无关。 这个普适类对自然配对是不稳定的，其中方向相反的单链形成双链。 变性/复性转变是在两个$\varphi_{n=0}^{4}$临界点和新普适类的临界点之间的连续交叉。 显示英文摘要

摘要： We investigate a field theory for RNA-like polymers with periodic base sequence GCGCG..., where only single-strands aligned in the same direction form double strands. The field theory is derived from a lattice model that incorporates excluded volume effects, base sequence, and temperature dependent renaturation/denaturation. The artificial directionality leads to a novel universality class, not related to conventional branched polymers and Lee-Yang field theory. This universality class is unstable against natural pairing, where oppositely aligned single-strands form double strands. The denaturation/renaturation transition is a continuous crossover between two $\varphi_{n=0}^{4}$ critical points and the critical point of the new universality class.