arXiv:1601.03755 [quant-ph]AbstractReferencesReviewsResources
Hyperconcentration for multipartite entanglement via linear optics
Published 2016-01-14Version 1
We present a hyperconcentration scheme for nonlocal $N$-photon hyperentangled Greenberger-Horne-Zeilinger states. The maximally hyperentangled state, in which $N$ particles are entangled simultaneously in the polarization and the spatial mode, can be obtained with a certain probability from two partially hyperentangled states. The hyperconcentration scheme is based on one polarization parity check measurement, one spatial mode parity check measurement and N-2 single-photon two-qubit measurements. The concentration only requires linear optical elements, which makes it feasible and practical with current technology.
Comments: 11 pages, 7 figures
Journal: Laser Phys. Lett. 11 (2014) 125201
Categories: quant-ph
Keywords: linear optics, multipartite entanglement, spatial mode parity check measurement, polarization parity check measurement, hyperconcentration scheme
Tags: journal article
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