Hybrid entanglement concentration assisted with single coherent state |
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| Affiliation: | 1. Key Laboratory of Broadband Wireless Communication and Sensor Network Technology (Ministry of Education), Nanjing University of Posts and Telecommunications, Nanjing Nanjing 210003, China;2. College of Mathematics & Physics, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;3. College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China |
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| Abstract: | Hybrid entangled state(HES) is a new type of entanglement, which combines the advantages of an entangled polarization state and an entangled coherent state. HES is widely discussed in the applications of quantum communication and computation. In this paper, we propose three entanglement concentration protocols(ECPs) for Bell-type HES, W-type HES, and cluster-type HES, respectively. After performing these ECPs, we can obtain the maximally entangled HES with some success probability. All the ECPs exploit the single coherent state to complete the concentration. These protocols are based on the linear optics, which are feasible in future experiments. |
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| Keywords: | hybrid entangled state quantum communication and computation entanglement concentration |
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