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arXiv 1106.2659gr-qc
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变色龙快子宇宙学中的相互作用全息暗能量

Interacting Holographic dark energy in chameleon tachyon cosmology

H. Farajollahi, A. Ravanpak, G. Farpour Fadakar

摘要:

本文提出了一个变色龙-快子宇宙学中的相互作用全息暗能量(IHDE)模型。在形式主义中,相互作用项出现在模型中的标量场耦合物质拉格朗日,而不是被插入到形式主义作为一个外部源的相互作用。快子场与全息暗能量密度之间的对应关系使得我们可以在平坦的FRW宇宙中重建快子标量场及其势。该模型能够反映宇宙的加速膨胀,并满足观测数据。

英文摘要:

We propose in this paper an interacting holographic dark energy (IHDE) model in chameleon--tachyon cosmology by interaction between the components of the dark sectors. In the formalism, the interaction term emerges from the scalar field coupling matter lagrangian in the model rather than being inserted into the formalism as an external source for the interaction. The correspondence between the tachyon field and the holographic dark energy (HDE) densities allows to reconstruct the tachyon scalar field and its potential in a flat FRW universe. The model can show the accelerated expansion of the universe and satisfies the observational data.

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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