36 citations · 287 across the 21 of their papers we have counts for
10 papers · 1 filter
Unruh-Fulling effect in nonlocal field theory: The role of Unruh decomposition
Ashmita Das, Bibhas Ranjan Majhi
We investigate the Unruh-Fulling effect in a class of nonlocal field theories by examining both the number operator and Unruh-DeWitt detector methods. Unlike in previous literature…
Invisibility of antisymmetric tensor fields in the light of gravity
Ashmita Das, Tanmoy Paul, Soumitra SenGupta
A natural question arises from observable signatures of scalar, fermion, and vector degrees of freedom (d.o.f.) in our Universe along with spin 2 symmetric tensor field in the form…
Unruh-DeWitt detector in presence of multiple scalar fields : A Toy Model
Chandramouli Chowdhury, Ashmita Das, Bibhas Ranjan Majhi
Applications of Unruh-Fulling (UF) effect are well studied in literature via the interaction of Unruh-DeWitt (UD) detector and {\it single} scalar field. In this work, we investiga…
Bouncing cosmology from warped extra dimensional scenario
Ashmita Das, Debaprasad Maity, Tanmoy Paul +1
From the perspective of four dimensional effective theory on a two brane warped geometry model, we examine the possibility of "bouncing phenomena"on our visible brane. Our results…
Radion stabilization in higher curvature warped spacetime
Ashmita Das, Hiya Mukherjee, Tanmoy Paul +1
We consider a five dimensional AdS spacetime in presence of higher curvature term like in the bulk. In this model, we examine the possibility of modulus stabiliza…
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.…