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Asymmetrical hyperentanglement concentration for entanglement of polarization and orbital angular momentum
Author(s) -
Chunyan Li,
Yong Shen
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.013172
Subject(s) - quantum entanglement , angular momentum , physics , polarization (electrochemistry) , photon , greenberger–horne–zeilinger state , quantum mechanics , photon polarization , quantum key distribution , optics , w state , quantum , chemistry
We propose two hyperentanglement concentration protocols (hyper-ECPs) for two-photon entangled states in the polarization and orbital angular momentum degrees of freedom. The two cases distilling a maximally hyperentangled state from partially entangled pure state with unknown parameters and known parameters are dissected respectively. Both of the protocols require only linear optical elements which make our protocols more feasible for current technologies. In our protocols, the remote parties perform different local operations, which will reduce everyone's operation and improve the total efficiency. Each of them has the theoretical maximum success probability in the corresponding situation. The hyper-ECPs can be exploited simply to hyperentangled Greenberger-Horne-Zeilinger states.

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