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5 papers · 1 filter
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…
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…
Gravitational lensing of gravitational waves: universal characteristics of strongly lensed memory waveforms
Ruanjing Zhang, Zhi-Chao Zhao, Shaoqi Hou +3
In this work, the strong lensing effect of the memory signal was considered. In the geometric optics limit, the lensed memory signal becomes oscillatory, while the unlensed is basi…
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…
Emergent scenario in mimetic gravity
Qihong Huang, Bing Xu, He Huang +2
The emergent scenario provides a possible way to avoid the big bang singularity by assuming that the universe originates from an Einstein static state. Therefore, an Einstein stati…