21 citations · 37 across the 5 of their papers we have counts for
5 papers
Elements of Topology, Differential Geometry and General Relativity for Physicists: A Mathematica-based Tutorial Approach
Balasubramanian Ananthanarayan, Souvik Bera, Subhasish Chakrabarty +4
This book is a self-contained, tutorial introduction to topology, differential geometry, and general relativity for students and researchers in physics. Its distinguishing feature…
Different types of torsion and their effect on the dynamics of fields
Subhasish Chakrabarty, Amitabha Lahiri
One of the formalisms that introduces torsion conveniently in gravity is the vierbein-Einstein-Palatini (VEP) formalism. The independent variables are the vierbein (tetrads) and th…
Geometrical contribution to neutrino mass matrix
Subhasish Chakrabarty, Amitabha Lahiri
The dynamics of fermions on curved spacetime requires a spin connection, which contains a part called contorsion, an auxiliary field without dynamics but fully expressible in terms…
Conformal scalar and torsion do not go together
Subhasish Chakrabarty, Amitabha Lahiri
We investigate the conformal transformation of vierbein-Einstein-Palatini (VEP) action in terms of tetrads and spin connection . The transformation of the spin co…
Weak field limit in vierbein-Einstein-Palatini formalism and Fierz-Pauli Equation
Subhasish Chakrabarty, Amitabha Lahiri
We consider the weak field limit of gravity in the vierbein-Einstein-Palatini formalism, find the action and the equations for perturbations around an arbitrary background, and com…