36 citations · 287 across the 21 of their papers we have counts for
21 papers
Virtual transitions in an atom-mirror system in the presence of two scalar photons
Ashmita Das, Soham Sen, Sunandan Gangopadhyay
We examine the virtual transition of an atom-mirror system with the simultaneous emission of two scalar photons, where the atom and the mirror admit a relative acceleration between…
New -Boson mass in the light of doubly warped braneworld model
Basabendu Barman, Ashmita Das, Soumitra Sengupta
The recent observation by CDF collaboration has disclosed a modification in the mass of the boson. In this regard we show that this modification in the mass of the boson ca…
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…
Non-minimally Coupled Vector Boson Dark Matter
Basabendu Barman, Nicolás Bernal, Ashmita Das +1
We consider a simple abelian vector dark matter (DM) model, where {\it only} the DM couples non-minimally to the scalar curvature of the backg…
Bounds on GUP parameters from GW150914 and GW190521
Ashmita Das, Saurya Das, Noor R. Mansour +1
We compute bounds on the GUP parameters for two versions of GUP using gravitational wave data from the events GW150914 and GW190521. The speed of the graviton and photon are calcul…
Discreteness of Space from GUP in Strong Gravitational Fields
Ashmita Das, Saurya Das, Elias C. Vagenas
A large class of quantum theories of gravity show that the Heisenberg's uncertainty principle is modified to the "Generalised Uncertainty Principle" (GUP) near the Planckian scale.…