论文标题
关于杂种T-偶（Orbifolds）的世界表观点
A Worldsheet Perspective on Heterotic T-Duality Orbifolds
论文作者
论文摘要
从世界表的角度讨论了不对称的杂音轨道。从Buscher对D紧凑型玻色子理论的测量开始，在非Lorentz不变量规固定后，获得了Tseytlin的二元性协方差描述。量规对称的剩余部分可用于去除加倍的恒定零模式，从而保留D物理目标空间坐标。这可以被认为是对双重田地理论的强大限制的世界表格实现。由于所有结果都是根据不变和广义指标编写的，因此该描述向异性理论的扩展很简单。明确的方法是概述如何获得在t偶尔行动下不变的广义度量的。它明确显示了移动轨道如何导致Narain Moduli的重新定义。最后，构建了许多较高维度的T折，其中包括一种新型的不对称Z6 Orbifold。
Asymmetric heterotic orbifolds are discussed from the worldsheet perspective. Starting from Buscher's gauging of a theory of D compact bosons the duality covariant description of Tseytlin is obtained after a non-Lorentz invariant gauge fixing. A left-over of the gauge symmetry can be used to removed the doubled constant zero modes so that D physical target space coordinate remain. This can be thought of as the worldsheet realization of the strong constraint of double field theory. The extension of this description to the heterotic theory is straightforward as all results are written in terms of the invariant and the generalized metrics. An explicit method is outline how to obtain a generalized metric which is invariant under T-duality orbifold actions. It is explicitly shown how shift orbifolds lead to redefinitions of the Narain moduli. Finally, a number of higher dimensional T-folds are constructed including a novel asymmetric Z6 orbifold.
