Strongly lensed repeating fast radio bursts as precision probes of the universe

@article{Li2018StronglyLR,
  title={Strongly lensed repeating fast radio bursts as precision probes of the universe},
  author={Zhengxiang Li and He Gao and Xu-Heng Ding and Guo-Jian Wang and Bing Zhang},
  journal={Nature Communications},
  year={2018},
  volume={9}
}
Fast radio bursts (FRBs), bright transients with millisecond durations at ∼GHz and typical redshifts probably >0.8, are likely to be gravitationally lensed by intervening galaxies. Since the time delay between images of strongly lensed FRB can be measured to extremely high precision because of the large ratio ∼109 between the typical galaxy-lensing delay time $$\sim{\cal O}$$~O (10 days) and the width of bursts $$\sim{\cal O}$$~O (ms), we propose strongly lensed FRBs as precision probes of the… 
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