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arXiv 1502.03673hep-th
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复杂结构的高阶变形

Higher Order Deformations of Complex Structures

Eric D'Hoker, Duong H. Phong

摘要:

在一般黎曼曲面上考虑了复杂结构的有限Beltrami微分变形。在总中心荷为零的共形场论中,导出了周期矩阵、格林函数和关联函数的相应变形的任意固定阶的精确公式。应力张量给出了一个简单的表示这些变形有效的所有订单。这样的变形公式自然进入超弦振幅的评估在两个循环的顺序与雷蒙穿刺,并在更高的循环顺序,在超重力制定的RNS超弦。

英文摘要:

Deformations of complex structures by finite Beltrami differentials are considered on general Riemann surfaces. Exact formulas to any fixed order are derived for the corresponding deformations of the period matrix, Green's functions, and correlation functions in conformal field theories with vanishing total central charge. The stress tensor is shown to give a simple representation of these deformations valid to all orders. Such deformation formulas naturally enter into the evaluation of superstring amplitudes at two-loop order with Ramond punctures, and at higher loop order, in the supergravity formulation of the RNS superstring.

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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