arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2109.05040hep-thgr-qcnlin.SI
收藏

作为标度不变可积$σ$模型的陪集CFTs的Kerr-Schild扰动

Kerr-Schild perturbations of coset CFTs as scale invariant integrable $σ$-models

Georgios Itsios, Konstantinos Sfetsos, Konstantinos Siampos

摘要:

广义相对论中的Kerr-Schild微扰提供了一种从已知解出发构造新的精确解的富有成效的方法,也阐明了时空的结构。我们在弦论和超引力的背景下开始这样的研究。具体来说,我们基于低维正交群显式构造了陪集CFTS的Kerr-Schild扰动。我们发现,这些引起规模,但不是外尔,不变的可积$σ$模型。我们明确表明,这些模型也可以来自一个特定的限制程序的$λ$变形陪集CFTs的基础上非紧群。最简单的$σ$模型的目标空间描述了一个二维尺度不变的黑洞,我们也提供了两种不同的嵌入到II型超引力。

英文摘要:

Kerr-Schild perturbations in General Relativity provide a fruitful way of constructing new exact solutions starting from known ones, elucidating also the structure of the spacetimes. We initiate such a study in the context of string theory and supergravity. Specifically, we explicitly construct Kerr-Schild perturbations of coset CFTs based on low dimensionality orthogonal groups. We show that these give rise to scale, but not Weyl, invariant integrable $σ$-models. We explicitly demonstrate that these models can also be derived from a particular limiting procedure of $λ$-deformed coset CFTs based on non-compact groups. The target space of the simplest $σ$-model describes a two-dimensional scale invariant black hole for which we also provide two different embeddings to type-II supergravity.

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。

↑