Tripartite entanglement in parametric down-conversion with spatially-structured pump
Quantum Physics
2010-02-13 v1
Abstract
Most investigations of multipartite entanglement have been concerned with temporal modes of the electromagnetic field, and have neglected its spatial structure. We present a simple model which allows to generate tripartite entanglement between spatial modes by parametric down-conversion with two symmetrically-tilted plane waves serving as a pump. The characteristics of this entanglement are investigated. We also discuss the generalization of our scheme to 2N+1-partite entanglement using 2N symmetrically-tilted plane pump waves. Another interesting feature is the possibility of entanglement localization in just two spatial modes.
Cite
@article{arxiv.1002.1798,
title = {Tripartite entanglement in parametric down-conversion with spatially-structured pump},
author = {D. Daems and F. Bernard and N. J. Cerf and M. I. Kolobov},
journal= {arXiv preprint arXiv:1002.1798},
year = {2010}
}
Comments
6 pages, 2 figures