A smoothed string-like braneworld in six dimensions

The European Physical Journal C

C. A. S. Almeida¹  J. C. B. Araújo¹  D. F. S. Veras¹  J. E. G. Silva¹ 

[1] Departamento de Física, Universidade Federal do Ceará, C.P. 6030, 60455-760, Fortaleza, Ceará, Brazil;

关键词: Massive Mode;    Warp Factor;    Warp Function;    Massive Graviton;    Massless Mode;   

DOI  :  10.1140/epjc/s10052-015-3350-8

来源: Springer

【 摘 要 】

We propose a static and axisymmetric braneworld in six dimensions as a string-like model extension. For a subtle warp function, this scenario provides near brane corrections. By varying the bulk cosmological constant, we obtain a source which passes through different phases. The solution is defined both for the interior and for the exterior of the string and satisfies all the energy conditions. A smoothed gravitational massless mode is localized on the brane, of which the core is displaced from the origin. In contrast to the thin-string model, the massive solutions have a high amplitude near the brane. Furthermore, by means of an analog quantum potential analysis, we show that only s-wave gravitational Kaluza–Klein modes are permissible.

【 授权许可】

CC BY