带准夸克的自加速
Selfacceleration with Quasidilaton
摘要：
有质量引力的准理论是有质量广义相对论的推广，它具有附加的标度不变性和近似的内伽利略对称性。该理论有一个新的自加速解，其度规与德西特空间不可区分（在解耦极限），其曲率由引力子质量设定。这个解的张量、矢量和标量扰动的谱在参数空间的一定范围内既不包含鬼波，也不包含梯度不稳定性或超光速模式。这代表了一个自加速的解决方案与可行的扰动，可在低能量有效场论。
英文摘要：
Quasidilaton massive gravity is an extension of massive General Relativity to a theory with additional scale invariance and approximate internal Galilean symmetry. The theory has a novel self-accelerated solution with the metric indistinguishable (in the decoupling limit) from the de Sitter space, its curvature set by the graviton mass. The spectra of tensor, vector, and scalar perturbations on this solution contain neither ghosts, nor gradient instabilities or superluminal modes, for a range of the parameter space. This represents an example of a self-accelerated solution with viable perturbations, attainable within a low energy effective field theory.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
