65 citations · 113 across the 5 of their papers we have counts for
6 papers
Periodic orbits around a spherically symmetric naked singularity
Gulmina Zaman Babar, Adil Zaman Babar, Yen-Kheng Lim
The motion of time-like test particles in the Fisher/Janis-Newman-Winicour (F/JNW) spacetime is studied with the Hamiltonian formulation of the geodesic equations. The spacetime is…
Kasner-type singularities and solitons with Lifshitz asymptotics
Yen-Kheng Lim
We present an exact solution in Einstein-Maxwell-dilaton gravity describing a spacetime with an anisotropic Kasner-type singularity and Lifshitz asymptotics. This configuration can…
Criteria of existence for bounce solutions in false vacuum decay with gravity
Nicholas W. K. Wong, Jiangbin Gong, Yen-Kheng Lim +1
The bounce solutions of self-interacting scalar fields coupled to gravity are studied using a semi-classical approach. We found that bounce solutions have a maximum required barrie…
Charged C-metric in conformal gravity
Yen-Kheng Lim
Using a C-metric-type ansatz, we obtain an exact solution to conformal gravity coupled to a Maxwell electromagnetic field. The solution resembles a C-metric spacetime carrying an e…
A new form of the C-metric with cosmological constant
Yu Chen, Yen-Kheng Lim, Edward Teo
The new form of the C-metric proposed by Hong and Teo, in which the two structure functions are factorised, has proved useful in its analysis. In this paper, we extend this form to…
Motion of charged particles around a magnetized/electrified black hole
Yen-Kheng Lim
Geodesic equations of timelike and null charged particles in the Ernst metric are studied. We consider two distinct forms of the Ernst solution where the Maxwell potential represen…