论文标题
隐藏扇区和TT变形的紧急重力
Emergent gravity from hidden sectors and TT deformations
论文作者
论文摘要
我们研究了延长ADS/CFT对应关系的范式的新兴重力。出现的重力与能量量张量的（动力学）期望值有关。我们得出了此类动力学的一般有效描述，并将其应用于隐藏理论产生重力与标准模型的重力的情况。在线性化的描述中，一般而言，这种重力具有额外的标量自由度的存在。旋转两个模式和自旋零模式的传播器均为正且定义良好。相关的新兴引力理论是一种双重理论，如全息图中的（秘密）。定义QFT的背景指标，扮演暗能量的作用，而新兴理论始终是原始背景指标的解决方案。在隐藏理论是全息图的情况下，总体描述产生了较高的散装理论，并与勃兰人结合。在紫外线上的有效重力在紫外线和IR中具有四维特征，并且总是很大。
We investigate emergent gravity extending the paradigm of the AdS/CFT correspondence. The emergent graviton is associated to the (dynamical) expectation value of the energy-momentum tensor. We derive the general effective description of such dynamics, and apply it to the case where a hidden theory generates gravity that is coupled to the Standard Model. In the linearized description, generically, such gravity is massive with the presence of an extra scalar degree of freedom. The propagators of both the spin-two and spin-zero modes are positive and well defined. The associated emergent gravitational theory is a bi-gravity theory, as is (secretly) the case in holography. The background metric on which the QFTs are defined, plays the role of dark energy and the emergent theory has always as a solution the original background metric. In the case where the hidden theory is holographic, the overall description yields a higher-dimensional bulk theory coupled to a brane. The effective graviton on the brane has four-dimensional characteristics both in the UV and IR and is always massive.
