Entanglement propagation of a quantum optical vortex state
Quantum Physics
2016-09-21 v3 Optics
Abstract
We study the entanglement evolution of a quantum optical vortex state propagating through coupled lossless waveguides. We consider states generated by coupling two squeezed modes using a sequence of beam splitters and also by subtracting photons from the signal in spontaneous parametric down conversion. We reconstruct the Wigner function at a later time to study the correlation and quantify the entanglement after propagation using \emph{logarithmic negativity}.
Cite
@article{arxiv.1406.6212,
title = {Entanglement propagation of a quantum optical vortex state},
author = {Anindya Banerji and Ravindra Pratap Singh and Dhruba Banerjee and Abir Bandyopadhyay},
journal= {arXiv preprint arXiv:1406.6212},
year = {2016}
}
Comments
8 pages, 6 figures, RevTeX 4. Minor corrections in this version