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A Note on Thermodynamics of Black Holes in Lovelock Gravity
Rong-Gen Cai
The Lovelock gravity consists of the dimensionally extended Euler densities. The geometry and horizon structure of black hole solutions could be quite complicated in this gravity,…
Gauss-Bonnet Black Holes in dS Spaces
Rong-Gen Cai, Qi Guo
We study the thermodynamic properties associated with black hole horizon and cosmological horizon for the Gauss-Bonnet solution in de Sitter space. When the Gauss-Bonnet coefficien…
Boosted Domain Wall and Charged Kaigorodov Space
Rong-Gen Cai
The Kaigorodov space is a homogeneous Einstein space and it describes a pp-wave propagating in anti-de Sitter space. It is conjectured in the literature that M-theory or string the…
Cosmological Scaling Solutions and Cross-coupling Exponential Potential
Zong-Kuan Guo, Yun-Song Piao, Rong-Gen Cai +1
We present a phase-space analysis of cosmology containing multiple scalar fields with a positive or negative cross-coupling exponential potential. We show that there exist power-la…
Inflationary Attractor from Tachyonic Matter
Zong-Kuan Guo, Yun-Song Piao, Rong-Gen Cai +1
We study the complete evolution of a flat and homogeneous universe dominated by tachyonic matter. We demonstrate the attractor behaviour of the tachyonic inflation using the Hamilt…