Bright six-partite entanglement from coupled intracavity nondegenerate parametric down-conversion
Junfeng Wang, Luwei Ma, Jing‐Lin Chen, Hong‐Yan Wu, Yuzhu Liu, Enhui Wang, Qing You Yan, Yuan She · Laser Physics Letters · 2017
Abstract We propose an experimentally feasible scheme to produce bright six-partite continuous-variable (CV) entanglement by coupled intracavity non-degenerate parametric down-conversion operating above-threshold. The six-partite entanglement properties of the output fields are theoretically analyzed according to the sufficient inseparability criterion for multipartite CV entanglement. Such compact tunable multipartite CV entanglement, generated from a coupled system, could be used in quantum communications and networks.