6 papers
The cosmological constant from space-time discreteness
Qi-Qi Fan, Cong Li, Hao-Ran Zhang +2
We regard the background of space-time as a physical system composed of discrete volume elements at the Planck scale and get the internal energy of space-time by Debye model. A tem…
Optical properties of a Brane-World black hole as photons couple to the Weyl tensor
He-Xu Zhang, Cong Li, Peng-Zhang He +2
In this article, we have investigated the equations of motion of the photons coupled to Weyl tensor by the geometric optics approximation and the corresponding shadow in a Brane-Wo…
Joule-Thomson expansion of the Bardeen-AdS black holes
Cong Li, Pengzhang He, Ping Li +1
The Joule-Thomson expansion process is studied for Bardeen-AdS black holes in the extended phase space. Firstly, we get Joule-Thomson coefficient and find that the divergent point…
Thermodynamics of the Bardeen Black Hole in Anti-de Sitter Space
Cong Li, Chao Fang, Miao He +3
We first study the thermodynamics of Bardeen-AdS black hole by the - diagram, where T is the Hawking temperature and is the radius of event horizon. The cut-off r…
The evolution of universe in the two-scalar theory
Jia-Cheng Ding, Ping Li, Cong Li +2
We generalize f(R,T) gravity into the two-scalar theory that includes two independent scalar fields by the variational method, and we derive its field equations in Einstein frame u…
Apparent horizon and gravitational thermodynamics of Universe in the Eddington-Born-Infeld theory
Jia-Cheng Ding, Qi-Qi Fan, Cong Li +2
The thermodynamics of Universe in the Eddington-Born-Infeld (EBI) theory was restudied by utilizing the holographic-style gravitational equations that dominate the dynamics of the…