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arXiv 1004.3607hep-thgr-qc
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Brans-Dicke宇宙学中相互作用熵校正的新年龄暗能量

Interacting entropy-corrected new agegraphic dark energy in Brans-Dicke cosmology

Kayoomars Karami, Ahmad Sheykhi, Mubasher Jamil, Z. Azarmi, M. M. Soltanzadeh

摘要:

受我们最近工作的启发[1],我们在Brans-Dicke宇宙学中推广了量子(或熵)修正的新年龄暗能量。这些修正项是从量子引力的竞争理论之一--圈量子引力出发的。以非平坦背景时空和宇宙的共形年龄为尺度,导出了暗能量的动力学状态方程和减速参数。这项研究的一个重要结果是幻影鸿沟方案与熵校正新的年龄暗能量。此外,我们假设一个系统的暗物质,辐射和暗能量,而后者只与暗物质相互作用。得到了与暗能量动力学有关的一些基本表达式。宇宙符合问题也在我们的模型中得到了解决。

英文摘要:

Motivated by a recent work of one of us [1], we extend it by using quantum (or entropy) corrected new agegraphic dark energy in the Brans-Dicke cosmology. The correction terms are motivated from the loop quantum gravity which is one of the competitive theories of quantum gravity. Taking the non-flat background spacetime along with the conformal age of the universe as the length scale, we derive the dynamical equation of state of dark energy and the deceleration parameter. An important consequence of this study is the phantom divide scenario with entropy-corrected new agegraphic dark energy. Moreover, we assume a system of dark matter, radiation and dark energy, while the later interacts only with dark matter. We obtain some essential expressions related with dark energy dynamics. The cosmic coincidence problem is also resolved in our model.

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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