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Four-mode continuous-variables entangled state: generation from beam splitter, a parametric down-conversion and a polarizer |
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| Authors: | Kuang Mai-Hu Ma Shan-Jun Liu Dong-Mei and Wang Shu-Jing |
| Affiliation: | College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China |
| Abstract: | We introduce a new kind of four-mode continuous variable entangled state in Fock space. The completeness relation and the partly nonorthonormal property of such a state are proven. The scheme to generate this state is presented by combining a symmetrical beamsplitter, a parametric down-conversion and a polarizer. After making a single-mode quadrature amplitude measurement, the remaining three modes are kept in entanglement. And its applications are also discussed. |
| Keywords: | four-mode entangled state integration within ordered product (IWOP) technique quadrature amplitude measurement |
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