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arXiv 0712.0571hep-th
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永恒的通货膨胀,过去和未来

Eternal Inflation, past and future

Anthony Aguirre

摘要:

宇宙暴胀,如果发生的话,将从根本上改变“大爆炸”的图景,而“大爆炸”仅仅是指向暴胀结束时的再加热。此外,这种再加热可能只是局部的,因此膨胀会在其他地方永远持续下去,不断产生类似大爆炸的区域。本章回顾了“永恒膨胀”的观点,然后重点讨论这对宇宙的最终开端可能意味着什么。特别是,我将论证,给定永恒的膨胀,宇宙可能没有宇宙学初始奇点,可能是永恒的(和永恒的膨胀)到过去,并可能服从一种有趣的宇宙学时间对称性。

英文摘要:

Cosmological inflation, if it occurred, radically alters the picture of the `big bang', which would merely point to reheating at the end of inflation. Moreover, this reheating may be only local, so that inflation continues elsewhere and forever, continually spawning big-bang-like regions. This chapter reviews this idea of `eternal inflation', then focuses on what this may mean for the ultimate beginning of the universe. In particular, I will argue that given eternal inflation, the universe may be free of a cosmological initial singularity, might be eternal (and eternally inflating) to the past, and might obey an interesting sort of cosmological time-symmetry.

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。

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