113 citations · 250 across the 9 of their papers we have counts for
9 papers
FSO-QKD protocols under free space losses and device imperfections: a comparative study
Mitali Sisodia, Omshankar, Vivek Venkataraman +1
Quantum key distribution (QKD) is a technique to establish a secret key between two parties through a quantum channel. Several QKD protocols have been proposed and implemented over…
Joint spectral amplitude analysis of SPDC photon pairs in a multimode ppLN ridge waveguide
Ramesh Kumar, Joyee Ghosh
In this paper, we study the possible parametric down conversion processes in a periodically poled customized Lithium Niobate (LiNbO3) ridge waveguide. Our analysis of spontaneous p…
SPDC in ppLN ridge waveguide: an analysis for efficient twin photon generation at 1550 nm
Ramesh Kumar, Joyee Ghosh
We study modal characteristics of a customized ridge waveguide in Lithium Niobate designed to generate twin photons at telecom wavelength. A quantum analysis of SPDC predicts the p…
Heralded Mapping of Photonic Entanglement into Single Atoms in Free Space: Proposal for a Loophole-Free Bell Test
Nicolas Sangouard, Jean-Daniel Bancal, Philipp Muller +2
An obvious way to entangle two atoms located at remote locations is to produce a pair of entangled photons half-way between the two atoms, to sent one photon to each location and t…
Heralded single photon absorption by a single atom
Nicolas Piro, Felix Rohde, Carsten Schuck +7
The emission and absorption of single photons by single atomic particles is a fundamental limit of matter-light interaction, manifesting its quantum mechanical nature. At the same…
Analysis of adiabatic transfer in cavity QED
Joyee Ghosh, R. Ghosh, Deepak Kumar
A three-level atom in a configuration trapped in an optical cavity forms a basic unit in a number of proposed protocols for quantum information processing. Through control with…