Heralded generation of multipartite entanglement for one photon by using a single two-dimensional nonlinear photonic crystal

We propose a compact scheme for the heralded generation of single-photon multipartite entanglement by using a single two-dimensional nonlinear photonic crystal. Studies have shown that by appropriate structure design, the single-photon entanglement shared among three spatially distinct optical modes...

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Bibliographic Details
Published in:Optics express 2013-04, Vol.21 (7), p.7875-7881
Main Authors: Shi, J, Xu, P, Zhong, M L, Gong, Y X, Bai, Y F, Yu, W J, Li, Q W, Jin, H, Zhu, S N
Format: Article
Language:English
Subjects:
Computer Simulation
Crystallization
Manufactured Materials
Models, Theoretical
Nonlinear Dynamics
Photons
Scattering, Radiation
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Summary:We propose a compact scheme for the heralded generation of single-photon multipartite entanglement by using a single two-dimensional nonlinear photonic crystal. Studies have shown that by appropriate structure design, the single-photon entanglement shared among three spatially distinct optical modes can be generated through three concurrent spontaneous parametric down-conversion processes by using the other photon in an identical spatial mode as a trigger. Furthermore, we analyze the entanglement of such heralded single-photon tripartite W-type state theoretically. This method can be expanded for the heralded single-photon N-partite entanglement generation. This compact and stable quantum light source may act as a key ingredient in quantum information science.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.21.007875