arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2004.04489hep-th
收藏

通过非线性实现的超Schwarzians

Super-Schwarzians via nonlinear realizations

Anton Galajinsky

摘要:

N=1和N=2的超史瓦西导数最初是由物理学家在计算超共形场论下的超应力-能量张量的有限超共形变换时引入的。数学家喜欢把它们看作是描述李超代数的中心扩张的上循环。在这项工作中,讨论了第三种可能性,即把非线性实现的方法应用于osp(1| 2)和su(1,1| 1)超共形代数。它表明,超Schwarzians出现很自然,如果一个决定保持独立的戈德斯通超场的数量最小。

英文摘要:

The N=1 and N=2 super-Schwarzian derivatives were originally introduced by physicists when computing a finite superconformal transformation of the super stress-energy tensor underlying a superconformal field theory. Mathematicians like to think of them as the cocycles describing central extensions of Lie superalgebras. In this work, a third possibility is discussed which consists in applying the method of nonlinear realizations to osp(1|2) and su(1,1|1) superconformal algebras. It is demonstrated that the super-Schwarzians arise quite naturally, if one decides to keep the number of independent Goldstone superfields to a minimum.

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。

↑