41 citations · 51 across the 11 of their papers we have counts for
11 papers
Grand Unified Yukawa Matrix Ansatz: The Standard Model Fermion Mass, Quark Mixing and CP Violation Parameters
Yong-Chao Zhang, De-Hai Zhang
We propose a new mass matrix ansatz: At the grand unified (GU) scale, the standard model (SM) Yukawa coupling matrix elements are integer powers of the square root of the GU gauge…
A Cyclic Cosmological Model in the Landscape Scenario
Cheng-Yi Sun, De-Hai Zhang
In [1], KKLT give a mechanism to generate de Sitter vacua in string theory. And the scenario, \emph{Landscape}, is suggested to explain the problem of the cosmological constant. In…
The Non-Gaussianity of Racetrack Inflation Models
Cheng-Yi Sun, De-Hai Zhang
In this paper, we use the result in [7] to calculate the non-Gaussianity of the racetrack models in [3, 5]. The two models give different non- Gaussianities. Both of them are reaso…
The Relative Entropy as an Increasing Function of Time in Cosmology
Cheng-Yi Sun, De-Hai Zhang
In this paper, it is shown that the relative entropy is an increasing function of time in both the linear regime and the non-linear regime during the large scale structure formatio…
The Exact Evolution Equation of the Curvature Perturbation for Closed Universe
De-Hai Zhang, Cheng-Yi Sun
As is well known, the exact evolution equation of the curvature perturbation plays a very important role in investigation of the inflation power spectrum of the flat universe. Howe…
The Eventual Quintessential Big Collapse of the Closed Universe with the Present Accelerative Phase
De-Hai Zhang
Whether our universe with present day acceleration can eventually collapse is very interesting problem. We are also interesting in such problems, whether the universe is closed? Wh…