4 papers
Effect of non-minimal coupling on gravitational light bending
Ayan Kumar Naskar, Avijit Sen Majumder, Sourav Bhattacharya
We investigate the bending of massless fields by a massive object in the presence of a curvature-scalar non-minimal coupling up to one loop, using the perturbat…
Scattering of massive spin-2 field via graviton exchanges with different spin fields and the long range gravitational potential
Avijit Sen Majumder, Sourav Bhattacharya
In this work, we compute the graviton mediated scattering amplitude of a massive spin-2 Fierz-Pauli field with various other massive spin fields, and in the non-relativistic limit,…
non-minimal coupling, and the long range gravitational potential for different spin fields from 2-2 scattering amplitudes
Avijit Sen Majumder, Ayan Kumar Naskar, Sourav Bhattacharya
In this paper we investigate the long range gravitational effect of curvature-scalar field non-minimal coupling, in the form of , in the perturbative quantum gravity fram…
coupling, cosmological constant and quantum gravitational correction to Newton's potential
Avijit Sen Majumder, Sourav Bhattacharya
This letter investigates the contribution of the interaction to the long range gravitational potential for massive scalar fields, from the non-relativistic limit…