Hyperentanglement concentration for entanglement of polarization and orbital angular momentum

LI Chun-Yan; Shen Yong; SUN Shi-Hai

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Hyperentanglement concentration for entanglement of polarization and orbital angular momentum

LI Chun-Yan *,Shen Yong,SUN Shi-Hai

Interdisciplinary Center for Quantum Information, Department of Physics, National University of Defense Technology, Changsha 410073

*Correspondence author

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Funding: National Natural Science Foundation of China （No.11204377）, Specialized Research Fund for the Doctoral Program of Higher Education （No.20124307120005）

Opened online: 2 June 2016

Accepted by: none

Citation: LI Chun-Yan,Shen Yong,SUN Shi-Hai.Hyperentanglement concentration for entanglement of polarization and orbital angular momentum[OL]. [ 2 June 2016] http://en.paper.edu.cn/en_releasepaper/content/4691096

We propose two hyperentanglement concentration protocols for two photons entangled states in the polarization and orbital angular momentum degrees of freedom. The two cases distilling a maximally hyperentangled state from less-entangled pure state with unknown parameters and known parameters are dissected respectively. Both of the schemes require only simple optical devices which makes our scheme more feasible with current technology and can be exploited to hyperentangled GHZ state and quantum repeaters of quantum network simply. We also discuss the success efficiency of our schemes in the paper. Both of them has a maximum success probability in corresponding situation.

Keywords:quantum information; hyperentanglement state, orbital angular momentum, polarization, degree of freedom

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