10 papers
On the Universal Cuspy Behavior in Black Hole Shadows
Peng Cheng, Si-Jiang Yang
This work investigates the universality of cusp formation in the shadows of compact objects. The emergence of cusps is accompanied by three interrelated phenomena: a topological ch…
Topological perspective on bulk boundary thermodynamic equivalence
Si-Jiang Yang, Shan-Ping Wu, Shao-Wen Wei +1
We establish an exact duality between the extended thermodynamics of five-dimensional charged Gauss-Bonnet AdS black holes and the thermodynamic framework of the dual boundary conf…
D-dimensional black holes in extended Gauss-Bonnet gravity
Jia-Zhou Liu, Si-Jiang Yang, Chun-Chun Zhu +1
In this work, we present charged spherically symmetric anti-de Sitter black hole solutions in dimensions () within the framework of extended Gauss--Bonnet gravity. Mo…
Deciphering black hole phase transitions through photon spheres
Si-Jiang Yang, Shan-Ping Wu, Shao-Wen Wei +1
Black hole thermodynamics is a crucial and foundational aspect of black hole physics, yet its observational verification remains exceptionally challenging. The photon sphere of a b…
Test fields and naked singularities: is the second law the cosmic censor?
Si-Jiang Yang, Zheng-Quan Cui, Shao-Wen Wei +1
It has been claimed that a Kerr-Newman black hole can generically be overspun by neutral test fields, and it has been argued that even when backreactions are taken into account, th…
Extended thermodynamical topology of black hole
Shan-Ping Wu, Si-Jiang Yang, Shao-Wen Wei
Thermodynamical topology has emerged as a powerful framework for classifying the thermodynamical behavior of black holes. Three distinct yet complementary topological invariants ha…