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4 papers · 1 filter
Raychaudhuri Equation and Weyl-Driven Shear: A Weak-Field Approach to Lensing and Gravitational Waves
Madhukrishna Chakraborty, Subenoy Chakraborty
The letter studies phenomena like gravitational wave propagation and gravitational lensing using the celebrated Raychaudhuri equation (RE) in the weak field limit. Newtonian analog…
Quasinormal modes and Grey body factors of Wormholes: From General prescription to Einstein Gauss Bonnet realizations
Madhukrishna Chakraborty, Subenoy Chakraborty
Traversable wormholes are one of the most exciting predictions of General Relativity that offer short-cuts through space-time. However, their feasibility requires the violation of…
Matter Creation Cosmologies and Accelerated Expansion
Sudip Halder, Jaume de Haro, Supriya Pan +2
Non-conservation of dark matter can lead to late-time cosmic acceleration. This mechanism is known as the matter creation theory and this replaces the need of dark energy and modif…
Investigating Evolving Wormholes in Gravity
Dhritimalya Roy, Ayanendu Dutta, Bikram Ghosh +1
The present work examines whether evolving wormhole solution is possible or not in modified gravity theory. In the background of inhomogeneous FLRW type wormhole configura…