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[2018-08-13]Achieving the highest measurement accuracy of Heisenberg-scaling precision measurement

The team Li Chengfeng, Chen Geng and others from CAS Key Lab of Quantum Informaiton collaborated with Nanjing University optimizes the measurement method of quantum weak measurement, and improves the measurement accuracy of single photon Kerr effect by an order of magnitude. The experimental results first approaches the optimal Heisenberg limit. The research results were published on August 8th in Physics Review Letters.
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