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arXiv 1704.02572gr-qchep-th
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具有非最小动力学项的对称

Symmetron with a non-minimal kinetic term

M. Honardoost, D. F. Mota, H. R. Sepangi

摘要:

通过引入一个与对称子相关的非最小动力学项,我们研究了对称子与暗能量的相容性。在这个新模型中,出现在对称场运动方程中的摩擦项的影响变得更加明显,由于非最小的动力学项出现在行动中,在特定的条件下,对称性破缺后,宇宙经历了一个加速阶段,尽管标量场的大有效质量,持续时间长达哈勃时间$H_{0}$。

英文摘要:

We investigate the compatibility of the Symmetron with dark energy by introducing a non-minimal kinetic term associated with the Symmetron. In this new model, the effect of the friction term appearing in the equation of motion of the Symmetron field becomes more pronounced due to the non-minimal kinetic term appearing in the action and, under specific conditions after symmetry breaking, the universe experiences an accelerating phase which, in spite of the large effective mass of the scalar field, lasts as long as the Hubble time $H_{0}$.

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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