72 citations · 224 across the 7 of their papers we have counts for
7 papers
N-vaton
Qing-Guo Huang
In general there are a large number of light scalar fields in the theories going beyond standard model, such as string theory, and some of them can be taken as the candidates of cu…
Spectral Index in Curvaton Scenario
Qing-Guo Huang
A red tilted primordial power spectrum is preferred by WMAP five-year data and a large positive local-type non-Gaussianity might be observed as well. In this short note we…
Large Non-Gaussianity Implication for Curvaton Scenario
Qing-Guo Huang
We argue that the typical energy density of a light scalar field should not be less than in the inflationary Universe. This requirement implies that the non-Gaussianity param…
Weak Gravity Conjecture for the Effective Field Theories with N Species
Qing-Guo Huang
We conjecture an intrinsic UV cutoff for the validity of the effective field theory with a large number of species coupled to gravity. In four dimensions such a UV cutoff takes the…
Theoretic Limits on the Equation of State Parameter of Quintessence
Qing-Guo Huang
The value of scalar field coupled to gravity should be less than the Planck scale in the consistent theory of quantum gravity. It provides a theoretic constraint on the equation of…
Eternal Chaotic Inflation is Prohibited by Weak Gravity Conjecture
Qing-Guo Huang, Miao Li, Yi Wang
We investigate whether the eternal chaotic inflation can be achieved when the weak gravity conjecture is taken into account. We show that even the assisted chaotic inflation with p…