Ayan Kumar Naskar

collaborators

2 papers

hep-th2026

Effect of $ξ R ϕ^{2}$ 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 $- g ξ R ϕ^{2}$ non-minimal coupling up to one loop, using the perturbativ…

hep-th2026

$ξ R ϕ^{2}$ 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 $ξ R ϕ^{2}$ , in the perturbative quantum gravity framew…

Effect of ξRϕ2 non-minimal coupling on gravitational light bending

ξRϕ2 non-minimal coupling, and the long range gravitational potential for different spin fields from 2-2 scattering amplitudes

Effect of $ξ R ϕ^{2}$ non-minimal coupling on gravitational light bending

$ξ R ϕ^{2}$ non-minimal coupling, and the long range gravitational potential for different spin fields from 2-2 scattering amplitudes