arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0711.3541hep-th
收藏

对数M(2,p)极小模型及其对数耦合和对偶

Logarithmic M(2,p) Minimal Models, their Logarithmic Couplings, and Duality

Pierre Mathieu, David Ridout

摘要:

给出了M(2,p)极小模型的对数扩张的自然构造,它推广了我们以前的渗流(p=3)模型[0708.0802].它的关键是用可约模代替极小模型的不可约模,可约模是通过要求每个模的两个主奇异向量中只有一个为零而得到的。然后,通过反复融合这些构建块表示,系统地构建所产生的理论。这产生不可分解的表示类型,这意味着存在的对数合作伙伴领域的理论。基本数据表征这些不可分解的模块,对数耦合,计算了许多特殊情况下,并给出了一个新的结构解释。非常值得注意的是,其中许多是以封闭的解析形式(对于一般p)提出的。这些是“规范不变”数据量的主要例子,这些数据量与定义对数伙伴场时存在的模糊性无关。最后,仅仅是全球共形不变性,以执行强约束的允许频谱:它是不可能的,包括模块以外的模型的构建块的融合所产生的。这推广了c=0模型中不可能存在两个有效中心荷的说法。它还表明存在第二个“双”对数理论为每个p。这种双模型进行了简要讨论。

英文摘要:

A natural construction of the logarithmic extension of the M(2,p) minimal models is presented, which generalises our previous model [0708.0802] of percolation (p=3). Its key aspect is the replacement of the minimal model irreducible modules by reducible ones obtained by requiring that only one of the two principal singular vectors of each module vanish. The resulting theory is then constructed systematically by repeatedly fusing these building block representations. This generates indecomposable representations of the type which signify the presence of logarithmic partner fields in the theory. The basic data characterising these indecomposable modules, the logarithmic couplings, are computed for many special cases and given a new structural interpretation. Quite remarkably, a number of them are presented in closed analytic form (for general p). These are the prime examples of ``gauge-invariant'' data - quantities independent of the ambiguities present in defining the logarithmic partner fields. Finally, mere global conformal invariance is shown to enforce strong constraints on the allowed spectrum: It is not possible to include modules other than those generated by the fusion of the model's building blocks. This generalises the statement that there cannot exist two effective central charges in a c=0 model. It also suggests the existence of a second ``dual'' logarithmic theory for each p. Such dual models are briefly discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑