度规引力理论与宇宙学. I. 物理解释与可行性
广义相对论与量子宇宙学
2010-11-26 v2
摘要
我们批判性地审视了当前将拉格朗日量依赖于完整黎曼张量的引力理论应用于宇宙学时的一些基本概念。我们认为,不可能从观测数据重构 underlying 拉格朗日量:Robertson-Walker 时空如此简单且“灵活”,以至于任何宇宙演化都可由无穷多个拉格朗日量拟合。将某一解与天文数据相对照,因动力学变量存在多个标架以及引力三重态的初始数据依赖于哪个标架与普通物质最小耦合而受阻。在任何应用之前,有必要确立给定引力理论的物理内容与可行性。
引用
@article{arxiv.gr-qc/0702097,
title = {Metric gravity theories and cosmology. I. Physical interpretation and viability},
author = {Leszek M. Sokolowski},
journal= {arXiv preprint arXiv:gr-qc/0702097},
year = {2010}
}
备注
29 pages. The previous version is divided in two separate papers. The first four chapters, expanded and modified, form the present paper. The title and abstract are adequately modified, some recent references added. The main conclusions remain unchanged. The second part will also appear in Class. Qu. Grav