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arXiv 1208.3729gr-qcastro-ph.COhep-th
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全息暗能量模型中的因果问题

Causality Problem in a Holographic Dark Energy Model

Hyeong-Chan Kim, Jae-Weon Lee, Jungjai Lee

摘要:

在全息暗能量模型中,未来事件视界的引入和宇宙的加速膨胀之间存在着一个臭名昭著的循环推理问题。我们将这个问题分为两部分来研究,即运动方程的因果关系问题和利用未来事件视界的循环逻辑。我们从因果运动方程中指定并隔离出问题的根源作为边界条件,它可以从宇宙的初始数据中确定。我们表明,有没有违反因果关系,如果它是适当的定义和循环逻辑问题可以减少到一个初始值问题。

英文摘要:

In the model of holographic dark energy, there is a notorious problem of circular reasoning between the introduction of future event horizon and the accelerating expansion of the universe. We examine the problem after dividing into two parts, the causality problem of the equation of motion and the circular logic on the use of the future event horizon. We specify and isolate the root of the problem from causal equation of motion as a boundary condition, which can be determined from the initial data of the universe. We show that there is no violation of causality if it is defined appropriately and the circular logic problem can be reduced to an initial value problem.

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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