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14 papers · 2 filters
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…
The Phase-space analysis of scalar fields with non-minimally derivative coupling
Yumei Huang, Qing Gao, Yungui Gong
We perform a dynamical analysis for the exponential scalar field with non-minimally derivative coupling. For the quintessence case, the stable fixed points are the same with and wi…
Critical Behavior in a Massless Scalar Field Collapse with Self-interaction Potential
Xuefeng Zhang, H. Lu
We examine a one-parameter family of analytical solutions representing spherically symmetric collapse of a nonlinear massless scalar field with self-interaction in an asymptoticall…
A note on electrical and thermodynamic properties of Isolated Horizon
Gerui Chen, Xiaoning Wu, Sijie Gao
The electrical laws and Carnot cycle of Isolated Horizon (IH) are investigated in this paper. We establish the Ohm's law and Joule's law of an Isolated Horizon, and find that the c…
Mass Dependence of the Entropy Product and Sum
Yuan Zhang, Sijie Gao
For black holes with multiple horizons, the area product of all horizons has been proven to be mass independent in many cases. Counterexamples were also found in some occasions. In…
Observational constraint on the varying speed of light theory
Jing-Zhao Qi, Ming-Jian Zhang, Wen-Biao Liu
The varying speed of light (VSL) theory is controversial. It succeeds in explaining some cosmological problems, but on the other hand it is excluded by mainstream physics because i…