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arXiv 1108.0140hep-phastro-ph.CO
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三种形式暗能量与暗物质耦合的动力学

Dynamics of three-form dark energy with dark matter couplings

T. Ngampitipan, P. Wongjun

摘要:

三形场可以产生暗能量的可行宇宙学方案,其潜在的可观测特征与标准的单标量场模型不同。本文研究了三态宇宙学的背景动力学。我们的分析表明,三种形式的场的势应该是失控的。我们还探讨了利用三态场与暗物质的耦合来解决符合问题的可能性。我们研究了四种耦合形式,发现$Q = \sqrt{6}Γ(\dot{X} + 3HX)/κ$形式的耦合为解决重合问题提供了可能。

英文摘要:

Three-form field can give rise to viable cosmological scenarios of dark energy with potentially observable signatures distinct from standard single scalar field models. In this study, the background dynamics of three-form cosmology are investigated. Our analysis suggests that the potential of three-form field should be runaway. We also investigate the possibility to solve the coincidence problem by using the coupling of three-form field to dark matter. Four types of coupling form are examined and we find that the coupling of the form $Q = \sqrt{6}Γ(\dot{X} + 3HX)/κ$ provides the possibility to solve the coincidence 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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