arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2602.10907hep-thgr-qchep-ph
收藏

经典弦与双重复制

Classical strings and the double copy

Università di Torino, and INFN, Sezione di Torino(都灵大学,意大利国家核物理研究所都灵分部);Queen Mary University of London(伦敦大学玛丽女王学院)

Riccardo Morieri, Igor Pesando, Michael L. Reichenberg Ashby, Chris D. White

AI总结:

本文研究了开放弦在恒定电场中的运动及其双重复制为闭合弦在时空背景中的运动,揭示了双重复制在经典弦背景下扩展的可能性。

摘要:

双重复制现在已成为一种已建立的关系,将散射振幅与经典解在规范和引力(场)理论中联系起来,并且本身受到弦论中振幅关系的启发。在本文中,我们将经典双重复制推广到弦的运动,以开放弦在背景阿贝尔规范场中的运动作为案例研究。我们论证这种情况下双重复制是闭合弦在由规范理论背景的双重复制产生的时空背景中运动。我们考虑的规范理论背景是恒定电场,其临界值超过后,开放弦运动会变得病态。我们在双重复制中未发现这种行为的对应物,并对此结果进行了解释。然后我们探讨了闭合弦如何仍然了解单复制规范理论。我们的结果为在经典弦背景下更系统地研究双重复制铺平了道路,从而超越了平坦空间中振幅的KLT关系。

英文摘要:

The double copy is by now a well-established relationship between scattering amplitudes and classical solutions in gauge and gravity (field) theories, and is itself inspired by amplitude relations in string theory. In this paper, we generalise the classical double copy to the motion of strings, taking as a case study the motion of an open string in a background abelian gauge field. We argue that the double copy of this situation is a closed string moving in a spacetime background arising as the double copy of the gauge theory background. The gauge theory background we consider is that of a constant electric field, which has a critical value beyond which the open string motion is pathological. We find no counterpart of this behaviour in the double copy, and interpret this result. We then examine how the closed string nevertheless still knows about the single copy gauge theory. Our results pave the way for more systematic study of the double copy in a classical string context, thus going beyond the KLT relations for amplitudes in flat space.

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。

↑