203 citations · 3.3k across the 144 of their papers we have counts for
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Higher rank antisymmetric tensor fields in Klebanov-Strassler geometry
Ashmita Das, Soumitra Sengupta
In string theory, higher rank antisymmetric tensor fields appear as massless excitations of closed strings. Till date there is no experimental support in favour of their existence.…
Kinematics of Radion field: A possible source of dark matter
Sumanta Chakraborty, Soumitra SenGupta
The discrepancy between observed virial and baryonic mass in galaxy clusters have lead to the missing mass problem. To resolve this, a new, non-baryonic matter field, known as dark…
Spherically symmetric brane in a bulk of f(R) and Gauss-Bonnet Gravity
Sumanta Chakraborty, Soumitra SenGupta
Effective gravitational field equations on a four dimensional brane embedded in a five dimensional bulk have been considered. Using the Einstein-Hilbert action along with the Gauss…
Lightest Kaluza-Klein graviton mode in a backreacted Randall-Sundrum scenario
Ashmita Das, Soumitra SenGupta
In search of extra dimensions in the ongoing LHC experiments, signatures of Randall-Sundrum (RS) lightest KK graviton have been one of the main focus in recent years. The recent da…
Can extra dimensional effects allow wormholes without exotic matter?
Sayan Kar, Sayantani Lahiri, Soumitra SenGupta
We explore the existence of Lorentzian wormholes in the context of an effective on-brane, scalar-tensor theory of gravity. In such theories, the timelike convergence condition, whi…
Effective field equation on m-brane embedded in n-dimensional bulk of Einstein and f(R) gravity
Sumanta Chakraborty, Soumitra SenGupta
We have derived effective gravitational field equations on a lower dimensional hypersurface (known as a brane), placed in a higher dimensional bulk spacetime for both Einstein and…