非对称膜修正引力的宇宙学
The Cosmology of Asymmetric Brane Modified Gravity
摘要:
我们考虑了修正引力的非对称膜模型,它可以产生宇宙的晚时间加速,并将这个模型的宇宙学与标准的$Λ$ CDM模型和DGP膜世界模型进行了比较。我们展示了如何在相关的物理尺度上的非对称宇宙学可以被视为一个单参数的DGP模型的扩展,并调查这个额外的参数对宇宙的膨胀历史的影响。
英文摘要:
We consider the asymmetric branes model of modified gravity, which can produce late time acceleration of the universe and compare the cosmology of this model to the standard $Λ$CDM model and to the DGP braneworld model. We show how the asymmetric cosmology at relevant physical scales can be regarded as a one-parameter extension of the DGP model, and investigate the effect of this additional parameter on the expansion history of the universe.
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