@article{connectingansatzexpressibilitytogradient,
  title = {Connecting ansatz expressibility to gradient magnitudes and barren plateaus},
  author = {Zoë Holmes and Kunal Sharma and M. Cerezo and Patrick J. Coles},
  year = {2021},
  eprint = {2101.02138},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2101.02138v2},
}