论文标题
部分可观测时空混沌系统的无模型预测
Some Recent Results on Ricci-Based Gravity Theories
论文作者
论文摘要
审查了RICCI张量的（投影不变的）收缩的重力Lagrangian的公制理论，并通过公制（基于RICCI的重力理论或简短的RBG）进行了审查。目的是提供一些最新结果的上下文化和连贯的介绍。特别是，我们专注于这些理论的字段方程与一般相对论之间存在的对应关系，并评论如何用于建立新的物理利益解决方案。我们还讨论了$ f（r）$案件中的结条件的形式主义，并提供了有关模型参数的当前实验和观察界的简要摘要。
Metric-affine theories in which the gravity Lagrangian is built using (projectively invariant) contractions of the Ricci tensor with itself and with the metric (Ricci-Based Gravity theories, or RBGs for short) are reviewed. The goal is to provide a contextualized and coherent presentation of some recent results. In particular, we focus on the correspondence that exists between the field equations of these theories and those of general relativity, and comment on how this can be used to build new solutions of physical interest. We also discuss the formalism of junction conditions in the $f(R)$ case, and provide a brief summary on current experimental and observational bounds on model parameters.
