Electronic cluster state entanglement concentration based on charge detection |
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| Authors: | Liu Jiong Zhao Sheng-Yang Zhou Lan Sheng Yu-Bo |
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| Institution: | a Key Laboratory of Broadband Wireless Communication and Sensor Network Technology, Nanjing University of Posts and Telecommunications, Ministry of Education, Nanjing 210003, China;b College of Mathematics & Physics, Nanjing University of Posts and Telecommunications, Nanjing 210003, China;c Institute of Signal Processing Transmission, Nanjing University of Posts and Telecommunications, Nanjing 210003, China |
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| Abstract: | We propose an efficient entanglement concentration protocol(ECP)based on electron-spin cluster states assisted with single electrons.In the ECP,we adopt the electron polarization beam splitter(PBS)and the charge detector to construct the quantum nondemolition measurement.According to the result of the measurement of the charge detection,we can ultimately obtain the maximally entangled cluster states.Moreover,the discarded items can be reused in the next round to reach a high success probability.This ECP may be useful in current solid quantum computation. |
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| Keywords: | entanglement concentration quantum computation cluster states |
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