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arXiv 2311.07367hep-th
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SL(2, $\mathbb C$) 四次顶点用于闭弦场论

SL(2, $\mathbb C$) quartic vertex for closed string field theory

Harold Erbin, Suvajit Majumder

AI总结:

本文构造了玻色子闭弦场论中带一般截断参数的SL(2,C)四次顶点,通过刻画模空间区域并给出局部坐标映射的充要条件,获得顶点区域参数化和体积的精确公式,为后续辅助场分解研究奠定基础。

摘要:

我们通过刻画4-穿孔球面模空间中顶点区域的特征,并为局部坐标映射提供必要且充分的条件,构造了具有一般截断参数的玻色子闭弦场论的 $\mathrm{SL}(2, \mathbb C)$ 四次顶点。虽然 $\mathrm{SL}(2, \mathbb C)$ 顶点不像最小面积或双曲顶点那样具有优美的几何递归构造,但它们可以解析研究,这使得它们更便于简单计算。特别地,我们获得了顶点区域参数化和体积作为截断参数函数的精确公式。拥有显式四次顶点的主要目标是后续利用辅助场研究其分解。

英文摘要:

We construct the $\mathrm{SL}(2, \mathbb C)$ quartic vertex with a generic stub parameter for the bosonic closed string field theory by characterizing the vertex region in the moduli space of 4-punctured sphere, and providing the necessary and sufficient constraints for the local coordinate maps. While $\mathrm{SL}(2, \mathbb C)$ vertices are not known to have a nice geometric recursive construction like the minimal area or hyperbolic vertices, they can be studied analytically which makes them more convenient for simple computations. In particular, we obtain exact formulas for the parametrization and volume of the vertex region as a function of the stub parameter. The main objective of having an explicit quartic vertex is to later study its decomposition using auxiliary fields.

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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