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arXiv 0712.2228hep-thastro-ph
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膜宇宙学中全息暗能量的恢复

Restoring Holographic Dark Energy in Brane Cosmology

E. N. Saridakis

摘要:

我们提出了一个广义版本的全息暗能量认为,它必须考虑在最大的宇宙模型的子空间。在膜宇宙学的背景下,它导致了体全息暗能量,它将其全息性质转移到有效的4D暗能量。作为一个应用,我们使用单膜模型,我们表明,在低能量限制的有效全息暗能量的行为与传统的4D计算预测相一致。然而,有限的体积可以导致完全不同的结果。

英文摘要:

We present a generalized version of holographic dark energy arguing that it must be considered in the maximally subspace of a cosmological model. In the context of brane cosmology it leads to a bulk holographic dark energy which transfers its holographic nature to the effective 4D dark energy. As an application we use a single-brane model and we show that in the low energy limit the behavior of the effective holographic dark energy coincides with that predicted by conventional 4D calculations. However, a finite bulk can lead to radically different results.

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