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arXiv 0804.2612math-phmath.MP
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对数表示中的SLE局部鞅

SLE local martingales in logarithmic representations

Kalle Kytölä

摘要:

SLE型增长过程的局部鞅空间构成了维拉索罗代数的一个表示,但除了一些最简单的情况外,对这个表示知之甚少.这篇文章的目的是展示L_0不可对角化的表示的例子-对数共形场论的一个特征现象。此外,我们还观察到局部鞅与边界变化场的融合积有着密切的关系。我们的例子首先再现了在中心荷的某些有理数值上的许多熟悉的对数表示。特别是,我们讨论的情况下,SLE(κ =6)描述的勘探路径在临界渗流,和它的关系与问题的操作内容的适当的共形场论的零中心荷。在这种情况下,通过对交叉事件的条件作用,人们以概率上透明的方式遇到了随机数。但我们也观察到,一些相当自然的SLE变体在所有kappa值下都表现出对数行为,因此在所有中心荷下,而不仅仅是在特定的有理值下。

英文摘要:

A space of local martingales of SLE type growth processes forms a representation of Virasoro algebra, but apart from a few simplest cases not much is known about this representation. The purpose of this article is to exhibit examples of representations where L_0 is not diagonalizable - a phenomenon characteristic of logarithmic conformal field theory. Furthermore, we observe that the local martingales bear a close relation with the fusion product of the boundary changing fields. Our examples reproduce first of all many familiar logarithmic representations at certain rational values of the central charge. In particular we discuss the case of SLE(kappa=6) describing the exploration path in critical percolation, and its relation with the question of operator content of the appropriate conformal field theory of zero central charge. In this case one encounters logarithms in a probabilistically transparent way, through conditioning on a crossing event. But we also observe that some quite natural SLE variants exhibit logarithmic behavior at all values of kappa, thus at all central charges and not only at specific rational values.

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。

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