论文标题
使用BV形式主义插入顶点操作员
Insertion of vertex operators using BV formalism
论文作者
论文摘要
我们开发了一个通用框架，用于在BV形式主义中将顶点操作员插入字符串世界表。这样的插入对应于主作用的变形，该动作将量规对称性打破到子组，然后通过在拉格朗日亚曼菲尔德的空间中整合一个周期来恢复完整的量规对称性。我们提供了模量空间上的一般建筑，该建筑以前以世界表格上的本地形式进行了猜想。我们解释了如何将量规对称性的增强视为BV形式主义中的一种应用，是BV有效作用的一般思想的应用。我们得出了由于顶点插入而导致收缩算子变形的积分公式。
We develop a general framework for the insertion of vertex operator on the string worldsheet, in BV formalism. Such insertions correspond to deformations of the Master Action which breaks the gauge symmetry to a subgroup, and then restoring the full gauge symmetry by integrating over a cycle in the space of Lagrangian submanifolds. We provide the general construction, global on the moduli space, which was previously conjectured in a form local on the worldsheet. We explain how the enhancement of the gauge symmetry in equivariant BV formalism can be seen as an application of the general idea of BV effective action. We derive an integral formula for the deformation of the contraction operator due to the vertex insertion.
