@inproceedings{breakingthesamplecomplexitybarrierto,
  title = {Breaking the Sample Complexity Barrier to Regret-Optimal Model-Free Reinforcement Learning},
  author = {Gen Li and Laixi Shi and Yuxin Chen and Yuejie Chi},
  year = {2021},
  booktitle = {NeurIPS 2021 12},
  eprint = {2110.04645},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2110.04645v2},
}