par Daems, David ;Bernard, Florent ;Cerf, Nicolas ;Kolobov, Mikhail
Référence Journal of the Optical Society of America B, 27, page (447)
Publication Publié, 2010
Article révisé par les pairs
Résumé : 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 us 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. © 2010 Optical Society of America.