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arXiv 1012.4393hep-th
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弦论的T-对偶不变方法

T-duality Invariant Approaches to String Theory

Daniel C. Thompson

摘要:

本文研究了弦论的T-对偶不变形式的量子性质。本文介绍和评述了弦论的对偶不变形式,包括双重形式。我们计算的背景场方程的阿贝尔T-对偶的双重形式,并显示它们是如何与传统的弦论描述的环形紧化是一致的。我们将这些考虑推广到泊松-李T-对偶的情况下,并表明从对偶不变的父理论得到的重整化组方程的系统是等价的T-对偶对西格玛模型。在对偶不变形式主义中,在拉格朗日量的水平上松散地显示洛伦兹不变性是很常见的。缺乏明显的不变性意味着在量子水平上,人们可能会预期洛伦兹异常,我们表明,这种异常取消非平凡。这些代表重要的和非平凡的一致性检查的对偶不变的方法弦论。

英文摘要:

This thesis investigates the quantum properties of T-duality invariant formalisms of String Theory. We introduce and review duality invariant formalisms of String Theory including the Doubled Formalism. We calculate the background field equations for the Doubled Formalism of Abelian T-duality and show how they are consistent with those of a conventional String Theory description of a toroidal compactification. We generalise these considerations to the case of Poisson--Lie T-duality and show that the system of renormalisation group equations obtained from the duality invariant parent theory are equivalent to those of either of the T-dual pair of sigma-models. In duality invariant formalisms it is quite common to loose manifest Lorentz invariance at the level of the Lagrangian. The lack of manifest invariance means that at the quantum level one might anticipate Lorentz anomalies and we show that such anomalies cancel non-trivially. These represent important and non-trivial consistency checks of the duality invariant approach to String Theory.

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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