934 citations · 24.1k across the 324 of their papers we have counts for
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Cosmological Evolution of Interacting Phantom Energy with Dark Matter
Zong-Kuan Guo, Rong-Gen Cai, Yuan-Zhong Zhang
We investigate the cosmological evolution of an interacting phantom energy model in which the phantom field has interaction with the dark matter. We discuss the existence and stabi…
K-Chameleon and the Coincidence Problem
Hao Wei, Rong-Gen Cai
In this paper we present a hybrid model of k-essence and chameleon, named as k-chameleon. In this model, due to the chameleon mechanism, the directly strong coupling between the k-…
Cosmology with Interaction between Phantom Dark Energy and Dark Matter and the Coincidence Problem
Rong-Gen Cai, Anzhong Wang
We study a cosmological model in which phantom dark energy is coupled to dark matter by phenomenologically introducing a coupled term to the equations of motion of dark energy and…
Born-Infeld Black Holes in (A)dS Spaces
Rong-Gen Cai, Da-Wei Pang, Anzhong Wang
We study some exact solutions in a -dimensional Einstein-Born-Infeld theory with a cosmological constant. These solutions are asymptotically de Sitter or anti-de Sitter, d…
Second-Order Corrections to the Power Spectrum in the Slow-Roll Expansion with a Time-Dependent Sound Speed
Hao Wei, Rong-Gen Cai, Anzhong Wang
We extend Green's function method developed by Stewart and Gong to calculate the power spectrum of density perturbation in the case with a time-dependent sound speed, and explicitl…
Acoustic Wormholes
Kamal Kanti Nandi, Yuan-Zhong Zhang, Rong-Gen Cai
Acoustic analogs of static, spherically symmetric massive traversable Lorentzian wormholes are constructed as a {\em formal} extension of acoustic black holes. The method is straig…