arXiv 1302.21862013-02astro-ph.COgr-qcmath-phmath.MP

具有可数无穷多个态方程的宇宙中宇宙学视界的演化

Evolution of the Cosmological Horizons in a Universe with Countably Infinitely Many State Equations

Berta Margalef-Bentabol, Juan Margalef-Bentabol, Jordi Cepa

备注：: 10 pages. This is an author-created, un-copyedited version of an article accepted for publication in Journal of Cosmology and Astroparticle Physics. New version updates the bibliography and clarifies some non essential topics. arXiv admin note: substantial text overlap with arXiv:1302.1609
发表信息：: Journal of Cosmology and Astroparticle Physics, 02 (2013) 015
DOI：: 10.1088/1475-7516/2013/02/015

摘要：

本文是专门研究宇宙视界（粒子视界和事件视界）演化的两篇论文中的第二篇。具体来说，在本文中，我们考虑了一个加速宇宙的可数无穷多个常数状态方程的非常一般的情况下，我们得到简单的表达式，在各自的衰退速度，推广了以前的结果为一个和两个状态方程。我们还提供了一个定性研究的值的视界和它们的速度在宇宙的起源和在遥远的未来，我们证明了这些值只取决于一个占主导地位的状态方程。最后，我们比较两个视野，并确定何时一个比另一个大。

英文摘要：

This paper is the second of two papers devoted to the study of the evolution of the cosmological horizons (particle and event horizons). Specifically, in this paper we consider the extremely general case of an accelerated universe with countably infinitely many constant state equations, and we obtain simple expressions in terms of their respective recession velocities that generalize the previous results for one and two state equations. We also provide a qualitative study of the values of the horizons and their velocities at the origin of the universe and at the far future, and we prove that these values only depend on one dominant state equation. Finally, we compare both horizons and determine when one is larger that the other.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。