2 papers
gr-qc2025
Equation of the Perfect Fluid in the FRW Universe
Shi-Bei Kong, Ying Wang, Yu-Ke Wang
In this paper, we study the equation of state and its properties of the perfect fluid in the -dimensional FRW universe under Einstein gravity, Gauss-Bonnet gravity and Lovelock…
gr-qc2025
Temperature of McVittie Black Holes in Cavities
Shi-Bei Kong, Yu-Ke Wang, Zhen-Bin Zhu
In this paper, we obtain the temperature of the McVittie black hole and the charged McVittie black hole in a cavity with radius . The cavity temperature is derived from the bl…