10 citations · 11 across the 11 of their papers we have counts for
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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,…
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 o…
Spontaneous symmetry breaking induced by curvature : Analysis via non-perturbative 2PI Hartree approximation
Vishal Nath, Kinsuk Roy, Sourav Bhattacharya
In this work we investigate the spontaneous symmetry breaking (SSB) induced by a classical background spacetime's curvature, via the 2 particle irreducible (2PI) non-perturbative e…
Effective action for -Yukawa theory via 2PI formalism in the inflationary de Sitter spacetime
Sourav Bhattacharya, Kinsuk Roy
We consider a scalar field theory with quartic self interaction, Yukawa coupled to fermions in the inflationary de Sitter spacetime background. The scalar has a classical backgroun…
Yukawa coupling, and inflationary correlation functions for a spectator scalar via stochastic spectral expansion
Sourav Bhattacharya, Sudesh Kumar
We consider a stochastic spectator scalar field coupled to fermion via the Yukawa interaction, in the inflationary de Sitter background. We consider the fermion to be massless, and…