Engineering of Multi-Dimensional Entangled States of Photon Pairs Using Hyper-Entanglement
Ren Xi-Feng; Guo Guo-Ping; Li Jian; Li Chuan-Feng; Guo Guang-Can; Ren Xi-Feng; Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026; Guo Guo-Ping; Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026; Li Jian; Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026; Li Chuan-Feng; Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026; Guo Guang-Can; Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026
Журнал:
Chinese Physics Letters
Дата:
2006-03-01
Аннотация:
Multi-dimensional entangled states have been proven to be more powerful in some quantum information processes. Down-converted photons from spontaneous parametric down-conversion are used to engineer multi-dimensional entangled states. A kind of multi-degree multi-dimensional Greenberger–Horne–Zeilinger states can also be generated. The hyper-entangled photons are entangled in energy-time, polarization and orbital angular momentum, which is proven to be useful to increase the dimension of systems and to investigate higher-dimensional entangled states.
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