24 citations · 108 across the 10 of their papers we have counts for
15 papers
Scalar-Fermion Interaction as the Driver of Cosmic Acceleration
Soumya Chakrabarti, Amitabha Lahiri
We argue that an interacting scalar-fermion distribution can be used to demonstrate the cosmic acceleration in General Relativity. The interaction is of Yukawa nature and it drives…
On Generalized Theories of Varying Fine Structure Constant
Soumya Chakrabarti
We work with a class of scalar extended theory of gravity that can drive the present cosmic acceleration as well as accommodate a mild cosmic variation of the fine structure consta…
Cosmic Variation of Proton to Electron Mass Ratio with an interacting Higgs Scalar Field
Soumya Chakrabarti
We discuss that it is quite possible to realize the smooth transition of the universe between a matter/radiation dominated deceleration and a dark energy dominated acceleration, ev…
A wormhole geometry from gravitational collapse
Soumya Chakrabarti, Sayan Kar
We discuss a proposal on how gravitational collapse of a NEC (Null Energy Condition) violating spherically symmetric fluid distribution can avoid the formation of a zero proper vol…
Cosmic Acceleration in an Extended Brans-Dicke-Higgs Theory
Soumya Chakrabarti
We consider an extended scalar-tensor theory of gravity where the action has two interacting scalar fields, a Brans-Dicke field which makes the effective Newtonian constant a funct…
Geodesic Congruences and a Collapsing Stellar Distribution in f (T ) Theories
Soumya Chakrabarti, Jackson Levi Said
Teleparallel Gravity (TG) describes gravitation as a torsional- rather than curvature-based effect. As in curvature-based constructions of gravity, several different formulations c…