20 citations · 53 across the 17 of their papers we have counts for
17 papers
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…
Wormholes: Myth or Reality? Prospects for Future Observations
Subenoy Chakraborty, Madhukrishna Chakraborty
Traversable wormholes (TWHs) remain one of the most intriguing predictions of General Relativity (GR), offering passage through space-time. However, their existence requires the vi…
Exploring Traversable Wormholes in gravity: Shadows and Quasinormal modes
Madhukrishna Chakraborty, Subenoy Chakraborty
The present work deals with some WH solutions in gravity theory for non-constant red-shift function subject to a power law model of , being the non-metricity scala…
A study of Raychaudhuri equation and geodesic focusing in Fractal Universe
Madhukrishna Chakraborty, Subenoy Chakraborty
The paper deals with the modified Raychaudhuri equation (RE) within the framework of homogeneous and isotropic Fractal Universe. Focusing of a congruence of time-like geodesics has…
Curvature form of Raychaudhuri equation and its consequences: A geometric approach
Madhukrishna Chakraborty, Subenoy Chakraborty
The paper aims at deriving a curvature form of the famous Raychaudhuri equation (RE) and the associated criteria for focusing of a hyper-surface orthogonal congruence of time-like…
Classical and quantum analysis of gravitational singularity from Raychaudhuri equation
Madhukrishna Chakraborty, Subenoy Chakraborty
The present work deals with the Raychaudhuri equation (RE) to examine the space-time singularity both from classical and quantum point of view. The RE has been looked upon in terms…
Cosmological Wormhole: An analytical description
Subenoy Chakraborty, Madhukrishna Chakraborty
An attempt has been made to have an analytical description for possible traversable wormhole in non-static spherically symmetric space-time supported by anisotropic fluid. Both tri…
A study on existence of Wormhole in Lemaitre-Tolman-Bondi model
Subenoy Chakraborty, Madhukrishna Chakraborty
An investigation has been done for possible existence of evolving wormhole (WH) solution in the background of inhomogeneous Lemaitre-Tolman-Bondi (LTB) space-time geometry. Using s…
Black Hole singularity and its possible mitigations: Reformulation of Penrose Singularity theorem using null Raychaudhuri matrix
Madhukrishna Chakraborty, Subenoy Chakraborty
In this paper, we introduce a notion of null Raychaudhuri matrix motivated by the matrix representation of tensor fields. The evolution of this matrix gives the matrix form of null…
Raychaudhuri equation and the dynamics of cosmic evolution
Madhukrishna Chakraborty, Subenoy Chakraborty
The paper deals with the Raychaudhuri equation (RE) which is a non-linear ordinary differential equation in , the expansion scalar corresponding to a geodesic flow. Focusing the…
A Revisit to Classical and Quantum aspects of Raychaudhuri equation and possible resolution of Singularity
Subenoy Chakraborty, Madhukrishna Chakraborty
In this review, we provide a concrete overview of the Raychaudhuri equation, Focusing theorem and Convergence conditions in a plethora of backgrounds and discuss the consequences.…
On the consequences of Raychaudhuri equation in Kantowski-Sachs space-time
Madhukrishna Chakraborty, Subenoy Chakraborty
The paper aims to study the geometry and physics of the Raychaudhuri equation (RE) in the background of a homogeneous and anisotropic space-time described by Kantowski-Sachs (KS) m…
Raychaudhuri equation and Bouncing cosmology
Madhukrishna Chakraborty, Subenoy Chakraborty
The present work deals with an exhaustive study of bouncing cosmology in the background of homogeneous and isotropic Friedmann-Lemaitre-Robertson-Walker space-time. The geometry of…
Raychaudhuri Equation from Lagrangian and Hamiltonian formulation : A Quantum Aspect
Madhukrishna Chakraborty, Subenoy Chakraborty
The paper deals with a suitable transformation related to the metric scalar of the hyper-surface so that the Raychaudhuri Equation (RE) can be written as a second order nonlinear d…
The classical and quantum implications of the Raychaudhuri Equation in f(T)-gravity
Madhukrishna Chakraborty, Subenoy Chakraborty
The present work deals with the classical and quantum aspects of the Raychaudhuri equation in the framework of f(T)-gravity theory. In the background of homogeneous and isotropic F…
The Raychaudhuri Equation in inhomogeneous FLRW space-time : A -gravity model
Madhukrishna Chakraborty, Akash Bose, Subenoy Chakraborty
In general description of the Raychaudhuri equation it is found that this first order non-linear differential equation can be written as a second order linear differential equation…