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gr-qc2026
Perturbations in the parametrized wormhole spacetime and their related quasinormal modes
Shauvik Biswas, Sayan Chakrabarti
We study electromagnetic perturbations and the associated quasinormal modes (QNMs) of parametrized static, spherically symmetric wormhole spacetimes, focusing on Damour-Solodukhin…
gr-qc2024
Phenomenology of renormalization group improved gravity from the kinematics of SPARC galaxies
Esha Bhatia, Sayan Chakrabarti, Sovan Chakraborty
Renormalization Group correction to General Relativity (RGGR) proposes a logarithmic running of the gravitational coupling , resulting in a modified description of…