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gr-qc2026
On the effect of gravitational repulsion on geodesic deviation in the Schwarzschild-de Sitter spacetime
Rohit Ghosh, Biplab Raychaudhuri, Aditya S. Mondal +1
Here we discuss the effect of gravitational repulsion on geodesic deviation in the Schwarzschild-de Sitter spacetime. In particular, the geodesic deviation shows different behaviou…
gr-qc2026
Emergent gravity from nonlinear perturbation of spherical accretion with variable adiabatic index
Rohit Ghosh, Souvik Ghose, Biplab Raychaudhuri +2
The main aim of the present work is to demonstrate that the analogue gravity phenomena are not an artifact of linear perturbation, rather gravity-like effects emerge through the no…