57 citations · 71 across the 8 of their papers we have counts for
8 papers
Cosmological Inflation and Dark Sector from 11D Supergravity
Jiaming Shi, Zehua Xiao
We explore compactifications of the form of three tori with a general genus and one circle in the framework of 11D supergravity. By imposing suitable gauge conditions and boundary…
Cosmological constraints in covariant gravity with different connections
Jiaming Shi
Recently it has been shown that the cosmological dynamics of covariant gravity depend on different affine connections. In this paper, two specific models are investig…
On Primordial Black Holes and secondary gravitational waves generated from inflation with solo/multi-bumpy potential
Ruifeng Zheng, Jiaming Shi, Taotao Qiu
It is well known that a primordial black hole (PBH) can be generated in the inflation process of the early universe, especially when the inflation field has a number of non-trivial…
Adiabatic Duality: Duality of cosmological models with varying slow-roll parameter and sound speed
Jiaming Shi, Zheng Fang, Taotao Qiu
There have been thousands of cosmological models for our early universe proposed in the literature, and many of them claimed to be able to give rise to scale-invariant power spectr…
Large against Trans-Planckian Censorship in Scalar-Tensor Theory?
Jiaming Shi, Taotao Qiu
In this paper, we discuss about the possibility to enhance the tensor-to-scalar ratio under the condition of Trans-Planckian censorship conjecture (TCC), thus $r\sim O(10^{-3})…
Potential-driven Inflation with Disformal Coupling to Gravity
Taotao Qiu, Zehua Xiao, Jiaming Shi +1
In this paper, we investigate the potential-driven inflation models with a disformal coupling to Einstein Gravity, to find out the effects of such a coupling on these models. We co…