Husimi格上多单体SAW模型的解
Solution of a model of SAW's with multiple monomers per site on the Husimi lattice
摘要：
我们解决了一个模型的自我避免散步，允许一个网站访问两次的行走的Husimi格。该模型的灵感来自Domb-Joyce模型，并被提出来描述具有单点相互作用的聚合物的塌缩转变。我们考虑的版本中，立即自我逆转的步行是禁止的（RF模型）。我们获得的相图的巨正则版本的模型是类似的贝特晶格的解决方案中发现的，有两个不同的聚合相，一个三临界点和一个关键的端点。
英文摘要：
We solve a model of self-avoiding walks which allows for a site to be visited up to two times by the walk on the Husimi lattice. This model is inspired in the Domb-Joyce model and was proposed to describe the collapse transition of polymers with one-site interactions only. We consider the version in which immediate self-reversals of the walk are forbidden (RF model). The phase diagram we obtain for the grand-canonical version of the model is similar to the one found in the solution of the Bethe lattice, with two distinct polymerized phases, a tricritical point and a critical endpoint.
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