论文标题
喉头的重力
Gravity at the Tip of the Throat
论文作者
论文摘要
我们研究了由紧凑型IIB超级型在包含Klebanov-Strassler扭曲的喉咙的紧凑空间上产生的重力特征。 After reviewing the dimensional reduction of the 10d graviton and explicitly obtaining the equations of motion for the 4d tensor $h_{μν}$, vector $h_{μn}$ and scalar $h_{mn}$ modes, we find the masses and wavefunctions of the Kaluza-Klein tower of spin-2 states.我们探讨了质量和波函数如何取决于翘曲的强度与散装的大小之间的平衡，以及它们与纠正牛顿引力潜力的相互作用的范围和强度如何相关。通过计算沿喉咙某个地方的棕褐色的修改后的牛顿潜力，并对Klebanov-Strassler参数应用一致性约束，我们可以获得对现象学参数空间的预测。在完全扭曲的喉咙的情况下，并取决于毛刺沿喉咙的位置，这些预测的范围狭窄，并且与当前的观察和实验限制一致。我们还开始探索扭曲的喉咙中KK重力的重力波特征，发现强翘曲可以将相应的频率降低到当前和建议的实验的窗户。
We study the gravitational signatures that arise from compactifying Type IIB supergravity on a compact space containing a Klebanov-Strassler warped throat. After reviewing the dimensional reduction of the 10d graviton and explicitly obtaining the equations of motion for the 4d tensor $h_{μν}$, vector $h_{μn}$ and scalar $h_{mn}$ modes, we find the masses and wavefunctions of the Kaluza-Klein tower of spin-2 states. We explore how the masses and wavefunctions depend on the balance between the strength of the warping and the size of the bulk, and how these relate to the range and strength of the interactions which correct the Newtonian gravitational potential. By computing the modified Newtonian potential for sources on a brane somewhere along the throat, and applying consistency constraints on the Klebanov-Strassler parameters, we obtain predictions for the phenomenological parameter space. In the case of a fully warped throat, and depending on where the brane is along the throat, these predictions are narrow in range and consistent with current observational and experimental constraints. We also begin an exploration of gravitational wave signatures of KK gravitons in warped throats, finding that strong warping can bring the corresponding frequencies down to the windows of current and proposed experiments.
