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Inflation with High Derivative Couplings
Bin Chen, Miao Li, Tower Wang +1
We study a class of generalized inflation models in which the inflaton is coupled to the Ricci scalar by a general term. The scalar power spectrum, the spectral index, th…
Inflation with Holographic Dark Energy
Bin Chen, Miao Li, Yi Wang
We investigate the corrections of the holographic dark energy to inflation paradigm. We study the evolution of the holographic dark energy in the inflationary universe in detail, a…
Nonminimal Inflation and the Running Spectral Index
Miao Li
We study a class of models in which the inflaton is minimally coupled to gravity with a term $f(R)\vp^2$. We focus in particular on the case when , the expansion of the…
A Weak Gravity Conjecture for Scalar Field Theories
Miao Li, Wei Song, Yushu Song +1
We show that the recently proposed weak gravity conjecture\cite{AMNV0601} can be extended to a class of scalar field theories. Taking gravity into account, we find an upper bound o…
Brane Inflation After WMAP Three Year Results
Qing-Guo Huang, Miao Li, Jian-Huang She
WMAP three-year data favors a red power spectrum at the level of 2 standard deviations, which provides a stringent constraint on the inflation models. In this note we use this data…
Weak gravity conjecture in the asymptotical dS and AdS background
Qing-Guo Huang, Miao Li, Wei Song
The cosmological observations provide a strong evidence that there is a positive cosmological constant in our universe and thus the spacetime is asymptotical de Sitter space. The c…