标题： 修正的熵引力与宇宙学 显示英文标题

标题： Modified Entropic Gravity and Cosmology

摘要： 最近有人提出，引力可能是一种熵力。 尽管这种机制尚缺乏明确的基本描述，但仍可以探讨受熵启发的修改引力的唯象模型的可行性。 我将总结一些近期的研究工作，这些工作旨在利用宇宙学作为工具来约束那些修改旨在解释暗能量和暴胀背后物理现象的场景。 一种唯象的修改能够在背景层面上解释宇宙加速膨胀并符合观测结果，但带有更高曲率修正的简单暴胀模型与晚期物质主导相冲突。 显示英文摘要

摘要： It has been recently proposed that gravity might be an entropic force. Although a well defined fundamental description for such a mechanism is still lacking, it is still possible to address the viability of phenomenological models of entropic-inspired modified gravities. I will summarize some recent work directed to using cosmology as a tool to constraint scenarios in which the modifications are aimed to explain the physics behind dark energy and inflation. A phenomenological modification is able to explain cosmic acceleration at the background level and fit observations, but simple inflation models with higher curvature corrections are in conflict with late time matter domination.