85 citations · 279 across the 25 of their papers we have counts for
28 papers
Canonical quantization of massive vector field in Schwarzschild black hole background
Chandra Prakash, Rajesh Karmakar
We perform a first-principles canonical quantization of a massive vector field, often referred to as the Proca field, in a Schwarzschild spacetime background. While scalar, fermion…
Absorption cross section of a Schwarzschild black hole for a massive vector field
Kaustubh Mukund Vispute, Rajesh Karmakar
In the present work, we study the absorption cross section of a Schwarzschild black hole for a massive vector field over arbitrary frequencies. Working in the Frolov-Krtouš-Kubizňá…
Resonant transmission of scalar waves through rotating traversable wormhole
Rajesh Karmakar, Bum-Hoon Lee, Wonwoo Lee
The viability of traversable wormholes as exotic compact objects requires the identification of signatures that distinguish them from other compact objects. Given recent advances i…
Analytical solution of traversable wormholes in the presence of positive cosmological constant
Rajesh Karmakar, Xian-Hui Ge
The construction of traversable wormholes with a cosmological constant, , introduces significant challenges and leads to non-trivial modifications of the spacetime geometry. In…
When Primordial Black Holes Absorb During the Early Universe
Md Riajul Haque, Rajesh Karmakar, Yann Mambrini
We study the evolution of primordial black holes (PBHs) formed in the early universe in the presence of a surrounding thermal bath. By incorporating the effects of thermal absorpti…
Extreme mass ratio inspirals in the cold vector dark matter environment
Rajesh Karmakar, Debaprasad Maity, Kaustubh Mukund Vispute
With regard to the observed dark matter density profile in galaxies and clusters, the scalar dark matter scenario has been previously studied for potential detectability through gr…