Effective Lagrangian and stability analysis in warped space
Effective Lagrangian and stability analysis in warped space
复制标题
扭曲空间中的有效拉格朗日和稳定性分析
DOI:
10.1007/jhep09(2022)195
复制
发表时间:
2022
影响因子:
5.4
通讯作者:
H. Cai
中科院分区:
文献类型:
--
作者:
H. Cai
In the warped space model, the inter-brane distance can be stabilized by the Goldberger-Wise mechanism. Of particular importance, the stabilization potential calls for a proper identification of the dynamical degree of freedom. In this paper, we provided a complete calculation of the effective Lagrangian till the quadratic order that is generic for the Randall-Sundrum model and its N-brane (N≥ 4) extensions. By applying the variation principle to a specific perturbation field, we derived the equations of motion and orthogonal conditions for decoupling the graviton. This approach is demonstrated to be equivalent to the analysis using the linearized Einstein equation. Our derivation clarifies that in the N-brane set up, just one degree of freedom for the radion field is dynamical, with the other modes eliminated by the gauge fixings. Thus we can directly generalize the GW stabilization to the N-brane model in a way similar to the RS1 scenario.
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
野澤真人;小林努
通讯作者:
小林努