标题： 走向可靠的宇宙学大规模理论 显示英文标题

标题： Towards a sound massive cosmology

摘要： 众所周知，de Rham-Gabadadze-Tolley（dRGT）质量引力不允许具有平坦或球面空间度规的均匀且各向同性的宇宙。 我们证明，奇异参考度规以一种经济且直接的方式解决了这个问题。 在具有奇异参考度规的dRGT质量引力中，存在声学均匀且各向同性的宇宙学解。 我们分别研究了具有静态和动态奇异参考度规的宇宙学。 类似暗能量的项自然出现，并且宇宙在晚期演化过程中自我加速。 模拟暗物质的项也自然出现。 通过使用超新星、宇宙微波背景辐射和重子声波振荡的数据，在当前宇宙学模型框架下，我们对dRGT质量引力中的参数进行了初步限制。 显示英文摘要

摘要： It is known that de Rham-Gabadadze-Tolley (dRGT) massive gravity does not permit a homogeneous and isotropic universe with flat or spherical spatial metrics. We demonstrate that a singular reference metric solves this problem in an economic and straightforward way. In the dRGT massive gravity with a singular reference metric, there are sound homogeneous and isotropic cosmological solutions. We investigate cosmologies with the static and dynamical singular reference metrics, respectively. The term like dark energy appears naturally and the universe accelerates itself in some late time evolution. The term simulating dark matter also naturally emerges. We make a preliminary constraint on the parameters in the dRGT massive gravity in frame of the present cosmological model by using the data of supernovae, cosmic microwave back ground radiations, and baryonic acoustic oscillations.