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arXiv 1005.3241astro-ph.COgr-qc
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关于暗能量的有效物态方程

On the Effective Equation of State of Dark Energy

Martin S. Sloth

摘要:

在具有紫外动量截止的有效场论模型中,暗能量的有效物态方程与紫外截止尺度之间存在着联系。这意味着暗能量的状态方程不同于负一的测量,并不排除真空能量作为暗能量。它还表明了一种有趣的可能性,即对暗能量红外特性的精确测量可以用来探测与引力耦合的有效量子场论的紫外截止尺度。在一个以普朗克尺度为截止点的真空能量主导宇宙的玩具模型中,暗能量的有效状态方程是-0.96。

英文摘要:

In an effective field theory model with an ultraviolet momentum cutoff, there is a relation between the effective equation of state of dark energy and the ultraviolet cutoff scale. It implies that a measure of the equation of state of dark energy different from minus one, does not rule out vacuum energy as dark energy. It also indicates an interesting possibility that precise measurements of the infrared properties of dark energy can be used to probe the ultraviolet cutoff scale of effective quantum field theory coupled to gravity. In a toy model with a vacuum energy dominated universe with a Planck scale cutoff, the dark energy effective equation of state is -0.96.

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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