论文标题
Schrodinger PP波波几何形状上的巨型引力
Giant Gravitons on the Schrodinger pp-wave geometry
论文作者
论文摘要
我们在最近构建的非苏格拉施罗宾格背景的PP波段几何形状上构建了新的巨型重力解决方案。该解决方案表现出有趣的行为，因为时空的变形参数各不相同。首先，一旦打开变形，巨人与点重力之间的堕落是为了使巨型重力的好处。其次，当变形参数超过临界值时，将点与巨型重力分开的屏障消失。这表明仅仅存在D3-Brane会导致共形不变性的自发破坏。我们对完整的骨骼光谱进行了详细的分析，该分析表明，变形引起标量和量规场波动之间的耦合。正是这种耦合使巨大的重力不受速度不稳定性。此外，正如Kappa对称分析所表明的那样，巨型重力构型完全打破了PP波背景的超对称性。
We construct a new giant graviton solution on the recently constructed pp-wave geometry of the non-supersymmetric Schrodinger background. That solution exhibits an intriguing behavior as the deformation parameter of the spacetime varies. Firstly, the degeneracy between the giant and the point graviton is lifted for the benefit of the giant graviton as soon as the deformation is turned on. Secondly, when the deformation parameter exceeds a critical value the barrier separating the point from the giant graviton disappears. This suggests that the mere presence of a D3-brane leads to the spontaneous breaking of conformal invariance. We perform a detailed analysis of the full bosonic spectrum, which reveals that the deformation induces a coupling between the scalar and the gauge field fluctuations. It is exactly this coupling that keeps the giant graviton free of tachyonic instabilities. Furthermore, the giant graviton configuration completely breaks the supersymmetry of the pp-wave background, as the Kappa-symmetry analysis suggests.
