Protection of quantum correlations against decoherence |
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| Authors: | Chunfang Sun Zhihua Chen Gangcheng Wang Chunfeng Wu Kang Xue Leong Chuan Kwek |
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| Affiliation: | 1.School of Physics,Northeast Normal University,Changchun,China;2.Centre for Quantum Technologies,National University of Singapore,Singapore,Singapore;3.Department of Science, Zhijiang College,Zhejiang University of Technology,Hangzhou,China;4.Pillar of Engineering Product Development,Singapore University of Technology and Design,Singapore,Singapore;5.Institute of Advanced Studies,Nanyang Technological University,Singapore,Singapore;6.National Institute of Education,Nanyang Technological University,Singapore,Singapore |
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| Abstract: | The protection of different quantum correlations, such as Bell nonlocality, quantum discord, and geometric quantum discord as trace distance against noise, is explored. By weak measurement and quantum measurement reversal, we show that the mentioned quantum correlations can be effectively preserved probabilistically from the decoherence due to amplitude damping. The results will play an important role in the experiments using the quantum correlations as resource. |
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