标题： 二维CDT耦合物质的微观结构 显示英文标题

标题： The microscopic structure of 2D CDT coupled to matter

摘要： 我们证明对于（1+1维因果动力三角化(CDT)）与4个有质量标量场耦合的情况，如果质量平方大于或等于0.05，则可以构造一个有效的转移矩阵。这个转移矩阵的性质能够解释为什么物质耦合的CDT可以表现出与“纯粹”的CDT完全不同的行为。我们还确定了有效作用中的重要临界指数，这可能决定了该模型的普适性类别。 显示英文摘要

摘要： We show that for 1+1 dimensional Causal Dynamical Triangulations (CDT) coupled to 4 massive scalar fields one can construct an effective transfer matrix if the masses squared is larger than or equal to 0.05. The properties of this transfer matrix can explain why CDT coupled to matter can behave completely different from "pure" CDT. We identify the important critical exponent in the effective action, which may determine the universality class of the model.