Experimental random-party entanglement distillation via weak measurement
Zheng-Da Li, Xiao Hui Yuan, Xu-Fei Yin, Li-Zheng Liu, Rui Zhang, Yue-Yang Fei, Li Li, Nai-Le Liu, Xiongfeng Ma, He Lu, Yu-Ao Chen, Jian-Wei Pan · Physical Review Research · 2020
This work shows a proof-of-principle demonstration of the random entanglement distillation of Einstein-Podolsky-Rosen pairs from tripartite W states via weak measurements. The experimental distillation rate between two random parties appears larger than the theoretical limit of any distillation scheme between two specified parties.