84 citations · 244 across the 12 of their papers we have counts for
5 papers · 1 filter
Evolution of primordial black holes in Jordan-Brans-Dicke cosmology
A. S. Majumdar, D. Gangopadhyay, L. P. Singh
We consider the evolution of primordial black holes in a generalyzed Jordan-Brans-Dicke cosmological model where both the Brans-Dicke scalar field and its coupling to gravity are d…
Broadcasting of continuous variable entanglement
Satyabrata Adhikari, A. S. Majumdar, N. Nayak
We present a scheme for broadcasting of continuous variable entanglement. We show how an initial two-mode squeezed state of the electromagnetic field shared by two distant parties…
Control of atomic entanglement by dynamic Stark effect
Biplab Ghosh, A. S. Majumdar, N. Nayak
We study the entanglement properties of two three-level Rydberg atoms passing through a single-mode cavity. The interaction of an atom with the cavity field allows the atom to make…
Distinguishability of apparatus states in quantum measurement in the Stern-Gerlach experiment
Dipankar Home, Alok Kumar Pan, Md. Manirul Ali +1
In the context of the quantum mechanical modelling of a measurement process using the Stern-Gerlach setup, we critically examine the relationship between the notion of `distinguish…
Quantum time of flight distribution for cold trapped atoms
Md. Manirul Ali, Dipankar Home, A. S. Majumdar +1
The time of flight distribution for a cloud of cold atoms falling freely under gravity is considered. We generalise the probability current density approach to calculate the quantu…