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arXiv 1406.3098hep-th
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(渐近)$AdS_{5}$时空中U(1)规范向量场在平坦膜上的新定域方法

New localization method of U(1) gauge vector field on flat branes in (asymptotic) $AdS_{5}$ spacetime

Zhen-Hua Zhao, Qun-Ying Xie, Yuan Zhong

摘要:

众所周知,具有标准五维作用量的U(1)规范向量场不能定域在具有无限额外维度的Randall-Sundrum-like膜世界上。本文提出了一种修正的5D作用量,使U(1)规范向量场在具有无限或有限额外维的平坦膜上局域化。通过在矢量场的标准5D作用量中加入动力学质量项来实现定位方法,动力学质量项与5D标量曲率成比例。证明了当5D时空是(渐近)$AdS_{5}$时,矢量零模是可局域化的。此外,大质量快子模式可以被排除在外。

英文摘要:

It is well known that the U(1) gauge vector field, with the standard five-dimensional (5D) action, cannot be localized on Randall-Sundrum-like braneworlds with an infinite extra dimension. In this paper, we propose a modified 5D action to localize U(1) gauge vector field on flat branes with an infinite or finite extra dimension. The localization method is realized by adding a dynamical mass term into the standard 5D action of the vector field, which is proportional to the 5D scalar curvature. It is shown that the vector zero mode is localizable if the 5D spacetime is (asymptotic) $AdS_{5}$. Moreover, the massive tachyonic modes can be excluded.

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。

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