论文标题

关于宇宙常数作为米尔恩样空位的初始条件的评论

Remarks on the cosmological constant appearing as an initial condition for Milne-like spacetimes

论文作者

Ling, Eric

论文摘要

像米尔恩(Milne)一样的空位是$ k = -1 $ flrw spaceTimes的类别,可以通过大爆炸进行连续的时空扩展。在以前的论文[30]中,表明宇宙常数是米尔恩样空位的初始条件。在本文中,我们将此陈述概括为具有类似米尔恩的平台具有相似几何特性但没有与之相关的强烈的各向同性假设的空间。我们展示了我们的结果如何为早期宇宙产生“准清晰”的扩展,该扩展可能在通货膨胀方案中应用。

Milne-like spacetimes are a class of $k = -1$ FLRW spacetimes which admit continuous spacetime extensions through the big bang. In a previous paper [30], it was shown that the cosmological constant appears as an initial condition for Milne-like spacetimes. In this paper, we generalize this statement to spacetimes which share similar geometrical properties with Milne-like spacetimes but without the strong spatially isotropic assumption associated with them. We show how our results yield a "quasi de Sitter" expansion for the early universe which could have applications to inflationary scenarios.

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