论文标题
考虑重力的命运
Contemplating the fate of modified gravity
论文作者
论文摘要
现在，正在广泛研究改良重力的可能模型，大多数现象学动机来自宇宙学中的难题和紧张局势，这是由于自然而然地拟合已知和新近即将来临的数据的自然愿望。同时，可用的实验证据受到测试重力的限制，这是超出一般相对论理论已被证明是成功的制度的力量。这种情况使研究人员在某些类别的模型中寻找``最简单的修改''，这足以解决一个或多个问题。结果，我们在各种理论中失去了，没有更深的指导原则。我们对现有方法进行了一般审查，并讨论了当前的艺术状况。
Possible models of modified gravity are being extensively studied now, with most phenomenological motivations coming from puzzles and tensions in cosmology due to a natural desire to better fit the known and newly coming data. At the same time, available experimental evidence is limited for testing gravity as a force beyond the regimes in which the theory of general relativity has proven to be successful. This situation leads researchers to look for ``the simplest modification'' to general relativity in a certain class of models, which is enough to solve one or more problems. As a result, we are lost amid a variety of theories with no deeper guiding principle. We give a general review of existing approaches and discuss the current state of the art.
