17 citations · 21 across the 3 of their papers we have counts for
3 papers
gr-qc2025
Images and photon regions of continuous photon sphere spacetime
Long-Yue Li, Xia-Yuan Liu, Rong-Gen Cai +2
We study images of spacetimes containing continuous photon spheres (CPS). For a self-gravitating, isotropic, spherically symmetric spacetime with CPS, we find that a thin accretion…
hep-th2003★ 17 cited
Holography, the Cosmological Constant and the Upper Limit of the Number of e-foldings
Rong-Gen Cai
If the source of the current accelerating expansion of the universe is a positive cosmological constant, Banks and Fischler argued that there exists an upper limit of the total num…
hep-th2002★ 4 cited
A Note on the Positive Constant Curvature Space
Rong-Gen Cai
We construct a positive constant curvature space by identifying some points along a Killing vector in a de Sitter Space. This space is the counterpart of the three-dimensional Schw…