Abstract
In this paper, we study a cosmological model with the sign-changeable interaction between agegraphic dark energy (ADE) and dark matter. For the accelerated expansion of the universe, the model parameters n and β should satisfy the condition n>1 and \(-\frac{2}{3}<\beta<0\). We also investigate the effect of the parameters n and β on the evolutive behavior of our universe. Furthermore, by analysis it is shown that the equation of state of ADE with the sign-changeable interaction can cross the phantom divide from w d >−1 to w d <−1 for the appropriate n and β. This is different from that of ADE with usual interaction, whose equation of state changes from w d <−1 to w d >−1.
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This work is partially supported by Key Project of Chinese Ministry of Education (No. 211059) and Innovation Program of Shanghai Municipal Education Commission (11zz123).
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Xu, Y.D., Zhai, X.H. Cosmological evolution of agegraphic dark energy with the sign-changeable interaction. Astrophys Space Sci 345, 381–386 (2013). https://doi.org/10.1007/s10509-013-1393-6
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DOI: https://doi.org/10.1007/s10509-013-1393-6