arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2208.04662hep-th
收藏

Poisson-Lie T-对偶缺陷与靶空间融合

Poisson-Lie T-duality defects and target space fusion

Saskia Demulder, Thomas Raml

摘要:

长期以来,拓扑缺陷被认为是物理系统之间的对称性和对偶性的编码。在弦论的背景下,缺陷已经在世界面的水平上得到了深入的研究。虽然标志着一些开创性的里程碑,目标空间图片的缺陷是少得多的理解。在本文中,我们表明,在目标空间的水平,Poisson-Lie T-对偶可以编码为一个拓扑亏损。有了这个结果,我们可以假设内核捕获与RR扇区上的Poisson-Lie T-对偶作用相关联的Fourier-Mukai变换。拓扑缺陷有一个显著的特性,即它们可以融合在一起,或者与世界面边界条件融合。我们研究如何融合建议的广义T-对偶拓扑缺陷一贯导致已知的对偶变换的边界条件。最后,从广义T-对偶后退一步,我们解决了在目标空间水平上理解融合效果的一般问题。我们建议使用狄拉克几何的框架,并制定融合的拓扑缺陷和D-膜在这种语言。

英文摘要:

Topological defects have long been known to encode symmetries and dualities between physical systems. In the context of string theory, defects have been intensively studied at the level of the worldsheet. Although marked by a number of pioneering milestones, the target space picture of defects is much less understood. In this paper, we show, at the level of the target space, that Poisson-Lie T-duality can be encoded as a topological defect. With this result at hand, we can postulate the kernel capturing the Fourier-Mukai transform associated to the action of Poisson-Lie T-duality on the RR-sector. Topological defects have the remarkable property that they can be fused together or, alternatively, with worldsheet boundary conditions. We study how fusion of the proposed generalised T-duality topological defect consistently leads to the known duality transformations for boundary conditions. Finally, taking a step back from generalised T-duality, we tackle the general problem of understanding the effect of fusion at the level of the target space. We propose to use the framework of Dirac geometry and formulate the fusion of topological defects and D-branes in this language.

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。

↑