38 citations · 228 across the 21 of their papers we have counts for
21 papers
Thermal-acoustic fermionic dynamics and primordial perturbations in warm Yukawa inflation
Xi-Bin Li, Ke Fu, Ya-Ting Wang +2
We investigate fermion production and its cosmological consequences in a warm inflationary scenario with a Yukawa interaction between the inflaton field and Dirac fermions. Treatin…
Dynamics of potential-free warm -inflation with nonminimal derivative coupling
Xiao-Min Zhang, Zi-Xin Bai, Run-Qing Zhao +4
In contrast to potential-driven warm inflation models, this paper presents a new inflationary scenario driven purely by noncanonical kinetic terms. We derive the evolution equation…
Dynamics and observational signatures of warm Dirac-Born-Infeld inflation with nonminimal derivative coupling
Run-Qing Zhao, Xiao-Min Zhang, Peng-Cheng Chu +1
This paper investigates a warm Dirac-Born-Infeld (DBI) inflationary model with nonminimal derivative coupling (NMDC) to gravity, where the inflaton kinetic term interacts with the…
Primordial non-Gaussianity in noncanonical warm inflation with nonminimal derivative coupling
Xiao-Min Zhang, Run-Qing Zhao, Yun-Cai Feng +3
This paper presents and investigates non-Gaussian perturbations for the warm k-inflation model that is driven by pure kinetic energy. The two complementary components of the overal…
Noncanonical warm inflation with nonminimal derivative coupling
Xiao-Min Zhang, Run-Qing Zhao, Zhi-peng Peng +4
This study extended noncanonical warm inflation to the nonminimal derivative coupling scenario. The fundamental equations, including the evolution equations and the slow roll equat…
Properties of quark-matter cores in massive hybrid stars
He Liu, Xiao-Min Zhang, Peng-Cheng Chu
Using the constraints from astrophysical observations and heavy-ion experiments, we investigate the equation of state (EOS) of hybrid star matter and the properties of quark-matter…
Non-Gaussianity in the warm k-inflation
Chao-Qun Shen, Xiao-Min Zhang, Zhi-Peng Peng +3
This paper presents and investigates non-Gaussian perturbations for the warm k-inflation model that is driven by pure kinetic energy. The two complementary components of the overal…
Two models unifying warm inflation with dark matter and dark energy
Xiao-Min Zhang, Kai Li, Yi-Fu Guo +2
Two models that unify warm inflation with dark matter and dark energy are proposed. In the models, a single scalar field is responsible for the early expansion of the universe thro…
Consistency of a kind of general noncanonical warm inflation
Xiao-Min Zhang, Ang Fu, Kai Li +4
The framework of a kind of noncanonical warm inflation is introduced, and the dynamical equations of this scenario are presented. We propose the slow roll approximations and give s…
Non-Gaussianity in a general kind noncanonical warm inflation
Xiao-Min Zhang, Kai Li, Hong-Yang Ma +2
The general kind noncanonical warm inflation is introduced and its total non-Gaussianity of perturbation on uniform energy density hypersurfaces is studied. The total non-Gaussiani…
Observational Constraints on Two-field Warm Inflation
Yang-yang Wang, Xiao-Min Zhang, Jian-Yang Zhu
We study the two-field warm inflation models with a double quadratic potential and a linear temperature dependent dissipative coefficient. We derived the evolution equation of all…
Noncanonical warm inflation: a model with a general Lagrangian density
Kai Li, Xiao-Min Zhang, Hong-Yang Ma +1
Warm inflation is extended from the canonical field to the noncanonical field with a general Lagrangian density having coupling form of kinetic and potential terms. We develop the…
Perturbation spectra in the warm -inflation
Zhi-Peng Peng, Jia-Ning Yu, Xiao-Min Zhang +1
We investigate the cosmological perturbation theory and calculate the perturbation spectra in the warm -inflation. Unlike the scalar perturbations of -inflation in the cold i…
Two-field Warm Inflation and Its Scalar Perturbations on Large Scales
Yang-Yang Wang, Jian-Yang Zhu, Xiao-Min Zhang
We explore the homogeneous background dynamics and the evolution of generated perturbations of cosmological inflation that is driven by multiple scalar fields interacting with a pe…
Primordial non-Gaussianity in noncanonical warm inflation: three- and four-point correlations
Xiao-Min Zhang, Hong-Yang Ma, Peng-Cheng Chu +1
Non-Gaussianity generated in inflation can be contributed by two parts. The first part, denoted by , is the contribution from four-point correlation of inflaton field…
Consistency of warm k-inflation
Zhi-Peng Peng, Jia-Ning Yu, Xiao-Min Zhang +1
We extend the k-inflation which is a type of kinetically driven inflationary model under the standard inflationary scenario to a possible warm inflationary scenario. The dynamical…
Primordial non-Gaussianity in warm inflation using formalism
Xiao-Min Zhang, Hong-Yang Ma, Peng-Cheng Chu +2
A formalism is used to study the non-Gaussianity of the primordial curvature perturbation on an uniform density hypersurfaces generated by the warm inflation for the first tim…
Primordial non-Gaussianity in noncanonical warm inflation
Xiao-Min Zhang, Jian-Yang Zhu
We study the bispectrum of the primordial curvature perturbation on uniform-density hypersurfaces generated by a kind of the noncanonical warm inflation, wherein the inflation is p…
Extension of warm inflation to noncanonical scalar fields
Xiao-Min Zhang, Jian-Yang Zhu
We extend the warm inflationary scenario to the case of the noncanonical scalar fields. The equation of motion and the other basic equations of this new scenario are obtained. The…
Consistency of the tachyon warm inflationary universe models
Xiao-Min Zhang, Jian-Yang Zhu
This study concerns the consistency of the tachyon warm inflationary models. A linear stability analysis is performed to find the slow-roll conditions, characterized by the potenti…
Warm inflation in loop quantum cosmology: a model with a general dissipative coefficient
Xiao-Min Zhang, Jian-Yang Zhu
A general form of warm inflation with the dissipative coefficient in loop quantum cosmology is studied. In this case, we obtain conditions for the exist…